Home / 127,975.56-176,610.12-71,385.72

Finding the Fourth Proportional to 127,975.56, 176,610.12 and 71,385.72

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Solution

The fourth proportional to 127,975.56, 176,610.12 and 71,385.72 is: 98,514.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,975.56 : 176,610.12 = 71,385.72 : x
  2. Step 2: Convert to fraction form
    127,975.56/176,610.12 = 71,385.72/x
  3. Step 3: Cross multiply
    127,975.56x = 176,610.12 × 71,385.72
  4. Step 4: Simplify right side
    127,975.56x = 12,607,440,575.49
  5. Step 5: Solve for x
    x = 12,607,440,575.49/127,975.56
  6. Step 6: Final answer
    x = 98,514.44

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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.