Home / 157,690.35-217,619.15-89,719.29

Finding the Fourth Proportional to 157,690.35, 217,619.15 and 89,719.29

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Solution

The fourth proportional to 157,690.35, 217,619.15 and 89,719.29 is: 123,816.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,690.35 : 217,619.15 = 89,719.29 : x
  2. Step 2: Convert to fraction form
    157,690.35/217,619.15 = 89,719.29/x
  3. Step 3: Cross multiply
    157,690.35x = 217,619.15 × 89,719.29
  4. Step 4: Simplify right side
    157,690.35x = 19,524,635,179.81
  5. Step 5: Solve for x
    x = 19,524,635,179.81/157,690.35
  6. Step 6: Final answer
    x = 123,816.30

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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.