Home / 112,060,336.20-168,090,504.30-81,210,186.15

Finding the Fourth Proportional to 112,060,336.20, 168,090,504.30 and 81,210,186.15

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Solution

The fourth proportional to 112,060,336.20, 168,090,504.30 and 81,210,186.15 is: 121,815,279.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,060,336.20 : 168,090,504.30 = 81,210,186.15 : x
  2. Step 2: Convert to fraction form
    112,060,336.20/168,090,504.30 = 81,210,186.15/x
  3. Step 3: Cross multiply
    112,060,336.20x = 168,090,504.30 × 81,210,186.15
  4. Step 4: Simplify right side
    112,060,336.20x = 13,650,661,144,250,378
  5. Step 5: Solve for x
    x = 13,650,661,144,250,378/112,060,336.20
  6. Step 6: Final answer
    x = 121,815,279.23

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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.