Home / 112,343,434.80-168,515,152.20-91,936,100.40

Finding the Fourth Proportional to 112,343,434.80, 168,515,152.20 and 91,936,100.40

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Solution

The fourth proportional to 112,343,434.80, 168,515,152.20 and 91,936,100.40 is: 137,904,150.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,343,434.80 : 168,515,152.20 = 91,936,100.40 : x
  2. Step 2: Convert to fraction form
    112,343,434.80/168,515,152.20 = 91,936,100.40/x
  3. Step 3: Cross multiply
    112,343,434.80x = 168,515,152.20 × 91,936,100.40
  4. Step 4: Simplify right side
    112,343,434.80x = 15,492,625,951,580,480
  5. Step 5: Solve for x
    x = 15,492,625,951,580,480/112,343,434.80
  6. Step 6: Final answer
    x = 137,904,150.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.