Home / 181,003.28-249,780.70-100,429.04

Finding the Fourth Proportional to 181,003.28, 249,780.70 and 100,429.04

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Solution

The fourth proportional to 181,003.28, 249,780.70 and 100,429.04 is: 138,589.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,003.28 : 249,780.70 = 100,429.04 : x
  2. Step 2: Convert to fraction form
    181,003.28/249,780.70 = 100,429.04/x
  3. Step 3: Cross multiply
    181,003.28x = 249,780.70 × 100,429.04
  4. Step 4: Simplify right side
    181,003.28x = 25,085,235,911.53
  5. Step 5: Solve for x
    x = 25,085,235,911.53/181,003.28
  6. Step 6: Final answer
    x = 138,589.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.