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Finding the Fourth Proportional to 124,883.40, 187,325.10 and 72,395.40

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Solution

The fourth proportional to 124,883.40, 187,325.10 and 72,395.40 is: 108,593.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,883.40 : 187,325.10 = 72,395.40 : x
  2. Step 2: Convert to fraction form
    124,883.40/187,325.10 = 72,395.40/x
  3. Step 3: Cross multiply
    124,883.40x = 187,325.10 × 72,395.40
  4. Step 4: Simplify right side
    124,883.40x = 13,561,475,544.54
  5. Step 5: Solve for x
    x = 13,561,475,544.54/124,883.40
  6. Step 6: Final answer
    x = 108,593.10

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.