Home / 92,238.85-138,358.31-71,209.59

Finding the Fourth Proportional to 92,238.85, 138,358.31 and 71,209.59

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Solution

The fourth proportional to 92,238.85, 138,358.31 and 71,209.59 is: 106,814.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,238.85 : 138,358.31 = 71,209.59 : x
  2. Step 2: Convert to fraction form
    92,238.85/138,358.31 = 71,209.59/x
  3. Step 3: Cross multiply
    92,238.85x = 138,358.31 × 71,209.59
  4. Step 4: Simplify right side
    92,238.85x = 9,852,438,528.19
  5. Step 5: Solve for x
    x = 9,852,438,528.19/92,238.85
  6. Step 6: Final answer
    x = 106,814.41

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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.