Home / 157,078.70-235,618.05-82,169.90

Finding the Fourth Proportional to 157,078.70, 235,618.05 and 82,169.90

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Solution

The fourth proportional to 157,078.70, 235,618.05 and 82,169.90 is: 123,254.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,078.70 : 235,618.05 = 82,169.90 : x
  2. Step 2: Convert to fraction form
    157,078.70/235,618.05 = 82,169.90/x
  3. Step 3: Cross multiply
    157,078.70x = 235,618.05 × 82,169.90
  4. Step 4: Simplify right side
    157,078.70x = 19,360,711,606.70
  5. Step 5: Solve for x
    x = 19,360,711,606.70/157,078.70
  6. Step 6: Final answer
    x = 123,254.85

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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.