Home / 156,284.28-234,552.06-81,426.78

Finding the Fourth Proportional to 156,284.28, 234,552.06 and 81,426.78

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Solution

The fourth proportional to 156,284.28, 234,552.06 and 81,426.78 is: 122,205.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,284.28 : 234,552.06 = 81,426.78 : x
  2. Step 2: Convert to fraction form
    156,284.28/234,552.06 = 81,426.78/x
  3. Step 3: Cross multiply
    156,284.28x = 234,552.06 × 81,426.78
  4. Step 4: Simplify right side
    156,284.28x = 19,098,818,988.17
  5. Step 5: Solve for x
    x = 19,098,818,988.17/156,284.28
  6. Step 6: Final answer
    x = 122,205.63

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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.