Home / 141,977.76-195,930.55-77,447.28

Finding the Fourth Proportional to 141,977.76, 195,930.55 and 77,447.28

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Solution

The fourth proportional to 141,977.76, 195,930.55 and 77,447.28 is: 106,877.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,977.76 : 195,930.55 = 77,447.28 : x
  2. Step 2: Convert to fraction form
    141,977.76/195,930.55 = 77,447.28/x
  3. Step 3: Cross multiply
    141,977.76x = 195,930.55 × 77,447.28
  4. Step 4: Simplify right side
    141,977.76x = 15,174,287,186.75
  5. Step 5: Solve for x
    x = 15,174,287,186.75/141,977.76
  6. Step 6: Final answer
    x = 106,877.92

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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.