Home / 125,231.47-187,857.90-69,110.31

Finding the Fourth Proportional to 125,231.47, 187,857.90 and 69,110.31

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Solution

The fourth proportional to 125,231.47, 187,857.90 and 69,110.31 is: 103,671.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,231.47 : 187,857.90 = 69,110.31 : x
  2. Step 2: Convert to fraction form
    125,231.47/187,857.90 = 69,110.31/x
  3. Step 3: Cross multiply
    125,231.47x = 187,857.90 × 69,110.31
  4. Step 4: Simplify right side
    125,231.47x = 12,982,918,409.42
  5. Step 5: Solve for x
    x = 12,982,918,409.42/125,231.47
  6. Step 6: Final answer
    x = 103,671.37

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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.