Home / 103,651.12-155,479.92-28,772.02

Finding the Fourth Proportional to 103,651.12, 155,479.92 and 28,772.02

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Solution

The fourth proportional to 103,651.12, 155,479.92 and 28,772.02 is: 43,158.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,651.12 : 155,479.92 = 28,772.02 : x
  2. Step 2: Convert to fraction form
    103,651.12/155,479.92 = 28,772.02/x
  3. Step 3: Cross multiply
    103,651.12x = 155,479.92 × 28,772.02
  4. Step 4: Simplify right side
    103,651.12x = 4,473,471,367.84
  5. Step 5: Solve for x
    x = 4,473,471,367.84/103,651.12
  6. Step 6: Final answer
    x = 43,158.93

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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.