Home / 156,736.46-216,302.20-89,655.50

Finding the Fourth Proportional to 156,736.46, 216,302.20 and 89,655.50

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Solution

The fourth proportional to 156,736.46, 216,302.20 and 89,655.50 is: 123,727.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,736.46 : 216,302.20 = 89,655.50 : x
  2. Step 2: Convert to fraction form
    156,736.46/216,302.20 = 89,655.50/x
  3. Step 3: Cross multiply
    156,736.46x = 216,302.20 × 89,655.50
  4. Step 4: Simplify right side
    156,736.46x = 19,392,681,892.10
  5. Step 5: Solve for x
    x = 19,392,681,892.10/156,736.46
  6. Step 6: Final answer
    x = 123,727.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.