Home / 103,622.18-155,433.20-28,761.17

Finding the Fourth Proportional to 103,622.18, 155,433.20 and 28,761.17

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Solution

The fourth proportional to 103,622.18, 155,433.20 and 28,761.17 is: 43,141.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,622.18 : 155,433.20 = 28,761.17 : x
  2. Step 2: Convert to fraction form
    103,622.18/155,433.20 = 28,761.17/x
  3. Step 3: Cross multiply
    103,622.18x = 155,433.20 × 28,761.17
  4. Step 4: Simplify right side
    103,622.18x = 4,470,439,767.87
  5. Step 5: Solve for x
    x = 4,470,439,767.87/103,622.18
  6. Step 6: Final answer
    x = 43,141.73

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1.5x scale

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.