Home / 125,427.27-188,133.57-91,727.42

Finding the Fourth Proportional to 125,427.27, 188,133.57 and 91,727.42

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Solution

The fourth proportional to 125,427.27, 188,133.57 and 91,727.42 is: 137,585.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,427.27 : 188,133.57 = 91,727.42 : x
  2. Step 2: Convert to fraction form
    125,427.27/188,133.57 = 91,727.42/x
  3. Step 3: Cross multiply
    125,427.27x = 188,133.57 × 91,727.42
  4. Step 4: Simplify right side
    125,427.27x = 17,257,006,750.47
  5. Step 5: Solve for x
    x = 17,257,006,750.47/125,427.27
  6. Step 6: Final answer
    x = 137,585.77

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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.