Home / 157,139.60-235,687.26-82,235.12

Finding the Fourth Proportional to 157,139.60, 235,687.26 and 82,235.12

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Solution

The fourth proportional to 157,139.60, 235,687.26 and 82,235.12 is: 123,341.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,139.60 : 235,687.26 = 82,235.12 : x
  2. Step 2: Convert to fraction form
    157,139.60/235,687.26 = 82,235.12/x
  3. Step 3: Cross multiply
    157,139.60x = 235,687.26 × 82,235.12
  4. Step 4: Simplify right side
    157,139.60x = 19,381,770,108.57
  5. Step 5: Solve for x
    x = 19,381,770,108.57/157,139.60
  6. Step 6: Final answer
    x = 123,341.09

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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.