Home / 127,859.40-176,442.30-71,269.56

Finding the Fourth Proportional to 127,859.40, 176,442.30 and 71,269.56

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Solution

The fourth proportional to 127,859.40, 176,442.30 and 71,269.56 is: 98,349.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,859.40 : 176,442.30 = 71,269.56 : x
  2. Step 2: Convert to fraction form
    127,859.40/176,442.30 = 71,269.56/x
  3. Step 3: Cross multiply
    127,859.40x = 176,442.30 × 71,269.56
  4. Step 4: Simplify right side
    127,859.40x = 12,574,965,086.39
  5. Step 5: Solve for x
    x = 12,574,965,086.39/127,859.40
  6. Step 6: Final answer
    x = 98,349.95

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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.