Home / 112,066.40-168,099.60-103,512.80

Finding the Fourth Proportional to 112,066.40, 168,099.60 and 103,512.80

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Solution

The fourth proportional to 112,066.40, 168,099.60 and 103,512.80 is: 155,269.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,066.40 : 168,099.60 = 103,512.80 : x
  2. Step 2: Convert to fraction form
    112,066.40/168,099.60 = 103,512.80/x
  3. Step 3: Cross multiply
    112,066.40x = 168,099.60 × 103,512.80
  4. Step 4: Simplify right side
    112,066.40x = 17,400,460,274.88
  5. Step 5: Solve for x
    x = 17,400,460,274.88/112,066.40
  6. Step 6: Final answer
    x = 155,269.20

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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.