Home / 124,735.84-187,132.98-85,311.52

Finding the Fourth Proportional to 124,735.84, 187,132.98 and 85,311.52

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Solution

The fourth proportional to 124,735.84, 187,132.98 and 85,311.52 is: 127,987.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,735.84 : 187,132.98 = 85,311.52 : x
  2. Step 2: Convert to fraction form
    124,735.84/187,132.98 = 85,311.52/x
  3. Step 3: Cross multiply
    124,735.84x = 187,132.98 × 85,311.52
  4. Step 4: Simplify right side
    124,735.84x = 15,964,598,965.93
  5. Step 5: Solve for x
    x = 15,964,598,965.93/124,735.84
  6. Step 6: Final answer
    x = 127,987.26

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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.