Home / 109,213.92-150,720.04-61,470.36

Finding the Fourth Proportional to 109,213.92, 150,720.04 and 61,470.36

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Solution

The fourth proportional to 109,213.92, 150,720.04 and 61,470.36 is: 84,831.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,213.92 : 150,720.04 = 61,470.36 : x
  2. Step 2: Convert to fraction form
    109,213.92/150,720.04 = 61,470.36/x
  3. Step 3: Cross multiply
    109,213.92x = 150,720.04 × 61,470.36
  4. Step 4: Simplify right side
    109,213.92x = 9,264,815,118.01
  5. Step 5: Solve for x
    x = 9,264,815,118.01/109,213.92
  6. Step 6: Final answer
    x = 84,831.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.