Home / 106,617.28-147,115.65-70,859.83

Finding the Fourth Proportional to 106,617.28, 147,115.65 and 70,859.83

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Solution

The fourth proportional to 106,617.28, 147,115.65 and 70,859.83 is: 97,775.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,617.28 : 147,115.65 = 70,859.83 : x
  2. Step 2: Convert to fraction form
    106,617.28/147,115.65 = 70,859.83/x
  3. Step 3: Cross multiply
    106,617.28x = 147,115.65 × 70,859.83
  4. Step 4: Simplify right side
    106,617.28x = 10,424,589,949.34
  5. Step 5: Solve for x
    x = 10,424,589,949.34/106,617.28
  6. Step 6: Final answer
    x = 97,775.80

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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.