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Finding the Fourth Proportional to 124,129.26, 171,310.98 and 73,158.40

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Solution

The fourth proportional to 124,129.26, 171,310.98 and 73,158.40 is: 100,966.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,129.26 : 171,310.98 = 73,158.40 : x
  2. Step 2: Convert to fraction form
    124,129.26/171,310.98 = 73,158.40/x
  3. Step 3: Cross multiply
    124,129.26x = 171,310.98 × 73,158.40
  4. Step 4: Simplify right side
    124,129.26x = 12,532,837,199.23
  5. Step 5: Solve for x
    x = 12,532,837,199.23/124,129.26
  6. Step 6: Final answer
    x = 100,966.02

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.