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Finding the Fourth Proportional to 125,003.06, 172,470.05 and 71,268.48

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Solution

The fourth proportional to 125,003.06, 172,470.05 and 71,268.48 is: 98,331.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,003.06 : 172,470.05 = 71,268.48 : x
  2. Step 2: Convert to fraction form
    125,003.06/172,470.05 = 71,268.48/x
  3. Step 3: Cross multiply
    125,003.06x = 172,470.05 × 71,268.48
  4. Step 4: Simplify right side
    125,003.06x = 12,291,678,309.02
  5. Step 5: Solve for x
    x = 12,291,678,309.02/125,003.06
  6. Step 6: Final answer
    x = 98,331.02

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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.