Home / 127,771.12-176,329.60-71,182.48

Finding the Fourth Proportional to 127,771.12, 176,329.60 and 71,182.48

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Solution

The fourth proportional to 127,771.12, 176,329.60 and 71,182.48 is: 98,234.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,771.12 : 176,329.60 = 71,182.48 : x
  2. Step 2: Convert to fraction form
    127,771.12/176,329.60 = 71,182.48/x
  3. Step 3: Cross multiply
    127,771.12x = 176,329.60 × 71,182.48
  4. Step 4: Simplify right side
    127,771.12x = 12,551,578,225.41
  5. Step 5: Solve for x
    x = 12,551,578,225.41/127,771.12
  6. Step 6: Final answer
    x = 98,234.86

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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.