Home / 127,815.28-176,269.98-80,072.80

Finding the Fourth Proportional to 127,815.28, 176,269.98 and 80,072.80

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Solution

The fourth proportional to 127,815.28, 176,269.98 and 80,072.80 is: 110,428.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,815.28 : 176,269.98 = 80,072.80 : x
  2. Step 2: Convert to fraction form
    127,815.28/176,269.98 = 80,072.80/x
  3. Step 3: Cross multiply
    127,815.28x = 176,269.98 × 80,072.80
  4. Step 4: Simplify right side
    127,815.28x = 14,114,430,854.54
  5. Step 5: Solve for x
    x = 14,114,430,854.54/127,815.28
  6. Step 6: Final answer
    x = 110,428.35

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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.