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Finding the Fourth Proportional to 157,358.57, 235,909.67 and 73,171.89

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Solution

The fourth proportional to 157,358.57, 235,909.67 and 73,171.89 is: 109,698.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,358.57 : 235,909.67 = 73,171.89 : x
  2. Step 2: Convert to fraction form
    157,358.57/235,909.67 = 73,171.89/x
  3. Step 3: Cross multiply
    157,358.57x = 235,909.67 × 73,171.89
  4. Step 4: Simplify right side
    157,358.57x = 17,261,956,057.32
  5. Step 5: Solve for x
    x = 17,261,956,057.32/157,358.57
  6. Step 6: Final answer
    x = 109,698.23

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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.