Home / 125,040.36-172,565.28-71,326.56

Finding the Fourth Proportional to 125,040.36, 172,565.28 and 71,326.56

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Solution

The fourth proportional to 125,040.36, 172,565.28 and 71,326.56 is: 98,436.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,040.36 : 172,565.28 = 71,326.56 : x
  2. Step 2: Convert to fraction form
    125,040.36/172,565.28 = 71,326.56/x
  3. Step 3: Cross multiply
    125,040.36x = 172,565.28 × 71,326.56
  4. Step 4: Simplify right side
    125,040.36x = 12,308,487,797.84
  5. Step 5: Solve for x
    x = 12,308,487,797.84/125,040.36
  6. Step 6: Final answer
    x = 98,436.12

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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.