Home / 107,694.29-161,395.85-77,759.72

Finding the Fourth Proportional to 107,694.29, 161,395.85 and 77,759.72

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Solution

The fourth proportional to 107,694.29, 161,395.85 and 77,759.72 is: 116,534.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,694.29 : 161,395.85 = 77,759.72 : x
  2. Step 2: Convert to fraction form
    107,694.29/161,395.85 = 77,759.72/x
  3. Step 3: Cross multiply
    107,694.29x = 161,395.85 × 77,759.72
  4. Step 4: Simplify right side
    107,694.29x = 12,550,094,909.38
  5. Step 5: Solve for x
    x = 12,550,094,909.38/107,694.29
  6. Step 6: Final answer
    x = 116,534.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.