Home / 156,637.10-234,955.65-72,397.10

Finding the Fourth Proportional to 156,637.10, 234,955.65 and 72,397.10

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Solution

The fourth proportional to 156,637.10, 234,955.65 and 72,397.10 is: 108,595.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,637.10 : 234,955.65 = 72,397.10 : x
  2. Step 2: Convert to fraction form
    156,637.10/234,955.65 = 72,397.10/x
  3. Step 3: Cross multiply
    156,637.10x = 234,955.65 × 72,397.10
  4. Step 4: Simplify right side
    156,637.10x = 17,010,107,688.62
  5. Step 5: Solve for x
    x = 17,010,107,688.62/156,637.10
  6. Step 6: Final answer
    x = 108,595.65

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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.