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Finding the Fourth Proportional to 124,439.60, 186,659.40 and 45,610.40

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Solution

The fourth proportional to 124,439.60, 186,659.40 and 45,610.40 is: 68,415.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,439.60 : 186,659.40 = 45,610.40 : x
  2. Step 2: Convert to fraction form
    124,439.60/186,659.40 = 45,610.40/x
  3. Step 3: Cross multiply
    124,439.60x = 186,659.40 × 45,610.40
  4. Step 4: Simplify right side
    124,439.60x = 8,513,609,897.76
  5. Step 5: Solve for x
    x = 8,513,609,897.76/124,439.60
  6. Step 6: Final answer
    x = 68,415.60

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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.