Home / 157,412.19-217,234.26-89,432.01

Finding the Fourth Proportional to 157,412.19, 217,234.26 and 89,432.01

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Solution

The fourth proportional to 157,412.19, 217,234.26 and 89,432.01 is: 123,419.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,412.19 : 217,234.26 = 89,432.01 : x
  2. Step 2: Convert to fraction form
    157,412.19/217,234.26 = 89,432.01/x
  3. Step 3: Cross multiply
    157,412.19x = 217,234.26 × 89,432.01
  4. Step 4: Simplify right side
    157,412.19x = 19,427,696,512.66
  5. Step 5: Solve for x
    x = 19,427,696,512.66/157,412.19
  6. Step 6: Final answer
    x = 123,419.26

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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.