Home / 111,377.28-153,698.88-61,076.80

Finding the Fourth Proportional to 111,377.28, 153,698.88 and 61,076.80

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Solution

The fourth proportional to 111,377.28, 153,698.88 and 61,076.80 is: 84,285.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,377.28 : 153,698.88 = 61,076.80 : x
  2. Step 2: Convert to fraction form
    111,377.28/153,698.88 = 61,076.80/x
  3. Step 3: Cross multiply
    111,377.28x = 153,698.88 × 61,076.80
  4. Step 4: Simplify right side
    111,377.28x = 9,387,435,753.98
  5. Step 5: Solve for x
    x = 9,387,435,753.98/111,377.28
  6. Step 6: Final answer
    x = 84,285.02

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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.