Home / 272,103.13-408,158.76-103,632.76

Finding the Fourth Proportional to 272,103.13, 408,158.76 and 103,632.76

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Solution

The fourth proportional to 272,103.13, 408,158.76 and 103,632.76 is: 155,450.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,103.13 : 408,158.76 = 103,632.76 : x
  2. Step 2: Convert to fraction form
    272,103.13/408,158.76 = 103,632.76/x
  3. Step 3: Cross multiply
    272,103.13x = 408,158.76 × 103,632.76
  4. Step 4: Simplify right side
    272,103.13x = 42,298,618,816.98
  5. Step 5: Solve for x
    x = 42,298,618,816.98/272,103.13
  6. Step 6: Final answer
    x = 155,450.69

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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.