Home / 157,250.52-235,892.39-90,689.18

Finding the Fourth Proportional to 157,250.52, 235,892.39 and 90,689.18

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Solution

The fourth proportional to 157,250.52, 235,892.39 and 90,689.18 is: 136,043.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,250.52 : 235,892.39 = 90,689.18 : x
  2. Step 2: Convert to fraction form
    157,250.52/235,892.39 = 90,689.18/x
  3. Step 3: Cross multiply
    157,250.52x = 235,892.39 × 90,689.18
  4. Step 4: Simplify right side
    157,250.52x = 21,392,885,784.43
  5. Step 5: Solve for x
    x = 21,392,885,784.43/157,250.52
  6. Step 6: Final answer
    x = 136,043.34

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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.