Home / 127,511.71-176,003.22-85,070.14

Finding the Fourth Proportional to 127,511.71, 176,003.22 and 85,070.14

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Solution

The fourth proportional to 127,511.71, 176,003.22 and 85,070.14 is: 117,421.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,511.71 : 176,003.22 = 85,070.14 : x
  2. Step 2: Convert to fraction form
    127,511.71/176,003.22 = 85,070.14/x
  3. Step 3: Cross multiply
    127,511.71x = 176,003.22 × 85,070.14
  4. Step 4: Simplify right side
    127,511.71x = 14,972,618,565.85
  5. Step 5: Solve for x
    x = 14,972,618,565.85/127,511.71
  6. Step 6: Final answer
    x = 117,421.52

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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.