Home / 103,926.30-155,500.20-74,009.70

Finding the Fourth Proportional to 103,926.30, 155,500.20 and 74,009.70

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Solution

The fourth proportional to 103,926.30, 155,500.20 and 74,009.70 is: 110,737.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,926.30 : 155,500.20 = 74,009.70 : x
  2. Step 2: Convert to fraction form
    103,926.30/155,500.20 = 74,009.70/x
  3. Step 3: Cross multiply
    103,926.30x = 155,500.20 × 74,009.70
  4. Step 4: Simplify right side
    103,926.30x = 11,508,523,151.94
  5. Step 5: Solve for x
    x = 11,508,523,151.94/103,926.30
  6. Step 6: Final answer
    x = 110,737.35

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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.