Home / 107,761.92-148,725.02-65,315.04

Finding the Fourth Proportional to 107,761.92, 148,725.02 and 65,315.04

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Solution

The fourth proportional to 107,761.92, 148,725.02 and 65,315.04 is: 90,142.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,761.92 : 148,725.02 = 65,315.04 : x
  2. Step 2: Convert to fraction form
    107,761.92/148,725.02 = 65,315.04/x
  3. Step 3: Cross multiply
    107,761.92x = 148,725.02 × 65,315.04
  4. Step 4: Simplify right side
    107,761.92x = 9,713,980,630.30
  5. Step 5: Solve for x
    x = 9,713,980,630.30/107,761.92
  6. Step 6: Final answer
    x = 90,142.98

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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.