Home / 103,863.38-155,732.81-47,633.06

Finding the Fourth Proportional to 103,863.38, 155,732.81 and 47,633.06

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Solution

The fourth proportional to 103,863.38, 155,732.81 and 47,633.06 is: 71,421.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,863.38 : 155,732.81 = 47,633.06 : x
  2. Step 2: Convert to fraction form
    103,863.38/155,732.81 = 47,633.06/x
  3. Step 3: Cross multiply
    103,863.38x = 155,732.81 × 47,633.06
  4. Step 4: Simplify right side
    103,863.38x = 7,418,030,282.70
  5. Step 5: Solve for x
    x = 7,418,030,282.70/103,863.38
  6. Step 6: Final answer
    x = 71,421.04

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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.