Home / 102,155.52-153,211.68-48,817.20

Finding the Fourth Proportional to 102,155.52, 153,211.68 and 48,817.20

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Solution

The fourth proportional to 102,155.52, 153,211.68 and 48,817.20 is: 73,215.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,155.52 : 153,211.68 = 48,817.20 : x
  2. Step 2: Convert to fraction form
    102,155.52/153,211.68 = 48,817.20/x
  3. Step 3: Cross multiply
    102,155.52x = 153,211.68 × 48,817.20
  4. Step 4: Simplify right side
    102,155.52x = 7,479,365,224.90
  5. Step 5: Solve for x
    x = 7,479,365,224.90/102,155.52
  6. Step 6: Final answer
    x = 73,215.48

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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.