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Finding the Fourth Proportional to 125,083.80, 172,617.04 and 67,724.36

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Solution

The fourth proportional to 125,083.80, 172,617.04 and 67,724.36 is: 93,460.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,083.80 : 172,617.04 = 67,724.36 : x
  2. Step 2: Convert to fraction form
    125,083.80/172,617.04 = 67,724.36/x
  3. Step 3: Cross multiply
    125,083.80x = 172,617.04 × 67,724.36
  4. Step 4: Simplify right side
    125,083.80x = 11,690,378,559.09
  5. Step 5: Solve for x
    x = 11,690,378,559.09/125,083.80
  6. Step 6: Final answer
    x = 93,460.37

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1.5x scale

Why These Related Problems?

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