Home / 103,338.72-155,008.91-28,463.00

Finding the Fourth Proportional to 103,338.72, 155,008.91 and 28,463.00

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Solution

The fourth proportional to 103,338.72, 155,008.91 and 28,463.00 is: 42,694.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,338.72 : 155,008.91 = 28,463.00 : x
  2. Step 2: Convert to fraction form
    103,338.72/155,008.91 = 28,463.00/x
  3. Step 3: Cross multiply
    103,338.72x = 155,008.91 × 28,463.00
  4. Step 4: Simplify right side
    103,338.72x = 4,412,017,901.44
  5. Step 5: Solve for x
    x = 4,412,017,901.44/103,338.72
  6. Step 6: Final answer
    x = 42,694.72

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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.