Home / 125,637.25-173,419.80-80,436.97

Finding the Fourth Proportional to 125,637.25, 173,419.80 and 80,436.97

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Solution

The fourth proportional to 125,637.25, 173,419.80 and 80,436.97 is: 111,028.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,637.25 : 173,419.80 = 80,436.97 : x
  2. Step 2: Convert to fraction form
    125,637.25/173,419.80 = 80,436.97/x
  3. Step 3: Cross multiply
    125,637.25x = 173,419.80 × 80,436.97
  4. Step 4: Simplify right side
    125,637.25x = 13,949,363,250.01
  5. Step 5: Solve for x
    x = 13,949,363,250.01/125,637.25
  6. Step 6: Final answer
    x = 111,028.88

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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.