Home / 125,082.80-172,615.66-67,723.36

Finding the Fourth Proportional to 125,082.80, 172,615.66 and 67,723.36

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Solution

The fourth proportional to 125,082.80, 172,615.66 and 67,723.36 is: 93,458.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,082.80 : 172,615.66 = 67,723.36 : x
  2. Step 2: Convert to fraction form
    125,082.80/172,615.66 = 67,723.36/x
  3. Step 3: Cross multiply
    125,082.80x = 172,615.66 × 67,723.36
  4. Step 4: Simplify right side
    125,082.80x = 11,690,112,483.82
  5. Step 5: Solve for x
    x = 11,690,112,483.82/125,082.80
  6. Step 6: Final answer
    x = 93,458.99

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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.