Home / 157,384.27-217,190.29-85,764.34

Finding the Fourth Proportional to 157,384.27, 217,190.29 and 85,764.34

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Solution

The fourth proportional to 157,384.27, 217,190.29 and 85,764.34 is: 118,354.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,384.27 : 217,190.29 = 85,764.34 : x
  2. Step 2: Convert to fraction form
    157,384.27/217,190.29 = 85,764.34/x
  3. Step 3: Cross multiply
    157,384.27x = 217,190.29 × 85,764.34
  4. Step 4: Simplify right side
    157,384.27x = 18,627,182,463.78
  5. Step 5: Solve for x
    x = 18,627,182,463.78/157,384.27
  6. Step 6: Final answer
    x = 118,354.79

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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.