Home / 125,681.28-173,370.96-79,656.72

Finding the Fourth Proportional to 125,681.28, 173,370.96 and 79,656.72

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Solution

The fourth proportional to 125,681.28, 173,370.96 and 79,656.72 is: 109,882.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,681.28 : 173,370.96 = 79,656.72 : x
  2. Step 2: Convert to fraction form
    125,681.28/173,370.96 = 79,656.72/x
  3. Step 3: Cross multiply
    125,681.28x = 173,370.96 × 79,656.72
  4. Step 4: Simplify right side
    125,681.28x = 13,810,162,016.85
  5. Step 5: Solve for x
    x = 13,810,162,016.85/125,681.28
  6. Step 6: Final answer
    x = 109,882.41

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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.