Home / 124,820.40-187,230.60-54,625.20

Finding the Fourth Proportional to 124,820.40, 187,230.60 and 54,625.20

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Solution

The fourth proportional to 124,820.40, 187,230.60 and 54,625.20 is: 81,937.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,820.40 : 187,230.60 = 54,625.20 : x
  2. Step 2: Convert to fraction form
    124,820.40/187,230.60 = 54,625.20/x
  3. Step 3: Cross multiply
    124,820.40x = 187,230.60 × 54,625.20
  4. Step 4: Simplify right side
    124,820.40x = 10,227,508,971.12
  5. Step 5: Solve for x
    x = 10,227,508,971.12/124,820.40
  6. Step 6: Final answer
    x = 81,937.80

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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.