Home / 103,535.23-155,306.28-28,649.11

Finding the Fourth Proportional to 103,535.23, 155,306.28 and 28,649.11

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Solution

The fourth proportional to 103,535.23, 155,306.28 and 28,649.11 is: 42,974.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,535.23 : 155,306.28 = 28,649.11 : x
  2. Step 2: Convert to fraction form
    103,535.23/155,306.28 = 28,649.11/x
  3. Step 3: Cross multiply
    103,535.23x = 155,306.28 × 28,649.11
  4. Step 4: Simplify right side
    103,535.23x = 4,449,386,699.41
  5. Step 5: Solve for x
    x = 4,449,386,699.41/103,535.23
  6. Step 6: Final answer
    x = 42,974.62

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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.