Home / 111,281.91-153,580.02-63,542.43

Finding the Fourth Proportional to 111,281.91, 153,580.02 and 63,542.43

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Solution

The fourth proportional to 111,281.91, 153,580.02 and 63,542.43 is: 87,694.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,281.91 : 153,580.02 = 63,542.43 : x
  2. Step 2: Convert to fraction form
    111,281.91/153,580.02 = 63,542.43/x
  3. Step 3: Cross multiply
    111,281.91x = 153,580.02 × 63,542.43
  4. Step 4: Simplify right side
    111,281.91x = 9,758,847,670.25
  5. Step 5: Solve for x
    x = 9,758,847,670.25/111,281.91
  6. Step 6: Final answer
    x = 87,694.83

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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.