Home / 127,821.75-176,391.60-74,111.76

Finding the Fourth Proportional to 127,821.75, 176,391.60 and 74,111.76

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Solution

The fourth proportional to 127,821.75, 176,391.60 and 74,111.76 is: 102,272.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,821.75 : 176,391.60 = 74,111.76 : x
  2. Step 2: Convert to fraction form
    127,821.75/176,391.60 = 74,111.76/x
  3. Step 3: Cross multiply
    127,821.75x = 176,391.60 × 74,111.76
  4. Step 4: Simplify right side
    127,821.75x = 13,072,691,925.22
  5. Step 5: Solve for x
    x = 13,072,691,925.22/127,821.75
  6. Step 6: Final answer
    x = 102,272.83

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1.5x scale

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.