Home / 102,632.20-153,958.38-42,648.28

Finding the Fourth Proportional to 102,632.20, 153,958.38 and 42,648.28

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Solution

The fourth proportional to 102,632.20, 153,958.38 and 42,648.28 is: 63,976.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,632.20 : 153,958.38 = 42,648.28 : x
  2. Step 2: Convert to fraction form
    102,632.20/153,958.38 = 42,648.28/x
  3. Step 3: Cross multiply
    102,632.20x = 153,958.38 × 42,648.28
  4. Step 4: Simplify right side
    102,632.20x = 6,566,060,098.59
  5. Step 5: Solve for x
    x = 6,566,060,098.59/102,632.20
  6. Step 6: Final answer
    x = 63,976.61

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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.