Home / 103,493.28-155,006.52-72,467.04

Finding the Fourth Proportional to 103,493.28, 155,006.52 and 72,467.04

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Solution

The fourth proportional to 103,493.28, 155,006.52 and 72,467.04 is: 108,537.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,493.28 : 155,006.52 = 72,467.04 : x
  2. Step 2: Convert to fraction form
    103,493.28/155,006.52 = 72,467.04/x
  3. Step 3: Cross multiply
    103,493.28x = 155,006.52 × 72,467.04
  4. Step 4: Simplify right side
    103,493.28x = 11,232,863,685.10
  5. Step 5: Solve for x
    x = 11,232,863,685.10/103,493.28
  6. Step 6: Final answer
    x = 108,537.13

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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.