Home / 141,306.76-195,003.48-77,648.32

Finding the Fourth Proportional to 141,306.76, 195,003.48 and 77,648.32

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Solution

The fourth proportional to 141,306.76, 195,003.48 and 77,648.32 is: 107,154.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,306.76 : 195,003.48 = 77,648.32 : x
  2. Step 2: Convert to fraction form
    141,306.76/195,003.48 = 77,648.32/x
  3. Step 3: Cross multiply
    141,306.76x = 195,003.48 × 77,648.32
  4. Step 4: Simplify right side
    141,306.76x = 15,141,692,616.15
  5. Step 5: Solve for x
    x = 15,141,692,616.15/141,306.76
  6. Step 6: Final answer
    x = 107,154.76

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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.