Home / 127,823.16-176,391.90-80,102.28

Finding the Fourth Proportional to 127,823.16, 176,391.90 and 80,102.28

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Solution

The fourth proportional to 127,823.16, 176,391.90 and 80,102.28 is: 110,538.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,823.16 : 176,391.90 = 80,102.28 : x
  2. Step 2: Convert to fraction form
    127,823.16/176,391.90 = 80,102.28/x
  3. Step 3: Cross multiply
    127,823.16x = 176,391.90 × 80,102.28
  4. Step 4: Simplify right side
    127,823.16x = 14,129,393,363.53
  5. Step 5: Solve for x
    x = 14,129,393,363.53/127,823.16
  6. Step 6: Final answer
    x = 110,538.60

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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.