Home / 157,807.72-217,765.83-89,841.25

Finding the Fourth Proportional to 157,807.72, 217,765.83 and 89,841.25

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Solution

The fourth proportional to 157,807.72, 217,765.83 and 89,841.25 is: 123,975.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,807.72 : 217,765.83 = 89,841.25 : x
  2. Step 2: Convert to fraction form
    157,807.72/217,765.83 = 89,841.25/x
  3. Step 3: Cross multiply
    157,807.72x = 217,765.83 × 89,841.25
  4. Step 4: Simplify right side
    157,807.72x = 19,564,354,374.49
  5. Step 5: Solve for x
    x = 19,564,354,374.49/157,807.72
  6. Step 6: Final answer
    x = 123,975.90

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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.