Home / 127,690.41-176,218.23-71,101.79

Finding the Fourth Proportional to 127,690.41, 176,218.23 and 71,101.79

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Solution

The fourth proportional to 127,690.41, 176,218.23 and 71,101.79 is: 98,123.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,690.41 : 176,218.23 = 71,101.79 : x
  2. Step 2: Convert to fraction form
    127,690.41/176,218.23 = 71,101.79/x
  3. Step 3: Cross multiply
    127,690.41x = 176,218.23 × 71,101.79
  4. Step 4: Simplify right side
    127,690.41x = 12,529,430,702.54
  5. Step 5: Solve for x
    x = 12,529,430,702.54/127,690.41
  6. Step 6: Final answer
    x = 98,123.51

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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.