Home / 125,342.74-187,899-54,220.96

Finding the Fourth Proportional to 125,342.74, 187,899 and 54,220.96

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Solution

The fourth proportional to 125,342.74, 187,899 and 54,220.96 is: 81,281.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,342.74 : 187,899 = 54,220.96 : x
  2. Step 2: Convert to fraction form
    125,342.74/187,899 = 54,220.96/x
  3. Step 3: Cross multiply
    125,342.74x = 187,899 × 54,220.96
  4. Step 4: Simplify right side
    125,342.74x = 10,188,064,163.04
  5. Step 5: Solve for x
    x = 10,188,064,163.04/125,342.74
  6. Step 6: Final answer
    x = 81,281.65

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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.