Home / 110,678.52-152,731.86-65,371.20

Finding the Fourth Proportional to 110,678.52, 152,731.86 and 65,371.20

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Solution

The fourth proportional to 110,678.52, 152,731.86 and 65,371.20 is: 90,209.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,678.52 : 152,731.86 = 65,371.20 : x
  2. Step 2: Convert to fraction form
    110,678.52/152,731.86 = 65,371.20/x
  3. Step 3: Cross multiply
    110,678.52x = 152,731.86 × 65,371.20
  4. Step 4: Simplify right side
    110,678.52x = 9,984,264,966.43
  5. Step 5: Solve for x
    x = 9,984,264,966.43/110,678.52
  6. Step 6: Final answer
    x = 90,209.60

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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.