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Finding the Fourth Proportional to 124,648.40, 187,037.40 and 54,534.80

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Solution

The fourth proportional to 124,648.40, 187,037.40 and 54,534.80 is: 81,830.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,648.40 : 187,037.40 = 54,534.80 : x
  2. Step 2: Convert to fraction form
    124,648.40/187,037.40 = 54,534.80/x
  3. Step 3: Cross multiply
    124,648.40x = 187,037.40 × 54,534.80
  4. Step 4: Simplify right side
    124,648.40x = 10,200,047,201.52
  5. Step 5: Solve for x
    x = 10,200,047,201.52/124,648.40
  6. Step 6: Final answer
    x = 81,830.55

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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.