Home / 127,855.67-176,434.40-71,256.11

Finding the Fourth Proportional to 127,855.67, 176,434.40 and 71,256.11

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Solution

The fourth proportional to 127,855.67, 176,434.40 and 71,256.11 is: 98,329.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,855.67 : 176,434.40 = 71,256.11 : x
  2. Step 2: Convert to fraction form
    127,855.67/176,434.40 = 71,256.11/x
  3. Step 3: Cross multiply
    127,855.67x = 176,434.40 × 71,256.11
  4. Step 4: Simplify right side
    127,855.67x = 12,572,028,310.15
  5. Step 5: Solve for x
    x = 12,572,028,310.15/127,855.67
  6. Step 6: Final answer
    x = 98,329.85

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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.