Home / 157,213.83-216,947.94-85,593.72

Finding the Fourth Proportional to 157,213.83, 216,947.94 and 85,593.72

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Solution

The fourth proportional to 157,213.83, 216,947.94 and 85,593.72 is: 118,115.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,213.83 : 216,947.94 = 85,593.72 : x
  2. Step 2: Convert to fraction form
    157,213.83/216,947.94 = 85,593.72/x
  3. Step 3: Cross multiply
    157,213.83x = 216,947.94 × 85,593.72
  4. Step 4: Simplify right side
    157,213.83x = 18,569,381,230.94
  5. Step 5: Solve for x
    x = 18,569,381,230.94/157,213.83
  6. Step 6: Final answer
    x = 118,115.44

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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.