Home / 125,427.77-188,134.32-91,727.92

Finding the Fourth Proportional to 125,427.77, 188,134.32 and 91,727.92

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Solution

The fourth proportional to 125,427.77, 188,134.32 and 91,727.92 is: 137,586.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,427.77 : 188,134.32 = 91,727.92 : x
  2. Step 2: Convert to fraction form
    125,427.77/188,134.32 = 91,727.92/x
  3. Step 3: Cross multiply
    125,427.77x = 188,134.32 × 91,727.92
  4. Step 4: Simplify right side
    125,427.77x = 17,257,169,613.20
  5. Step 5: Solve for x
    x = 17,257,169,613.20/125,427.77
  6. Step 6: Final answer
    x = 137,586.52

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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.