Home / 127,696.08-176,218.56-71,108.40

Finding the Fourth Proportional to 127,696.08, 176,218.56 and 71,108.40

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Solution

The fourth proportional to 127,696.08, 176,218.56 and 71,108.40 is: 98,128.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,696.08 : 176,218.56 = 71,108.40 : x
  2. Step 2: Convert to fraction form
    127,696.08/176,218.56 = 71,108.40/x
  3. Step 3: Cross multiply
    127,696.08x = 176,218.56 × 71,108.40
  4. Step 4: Simplify right side
    127,696.08x = 12,530,619,851.90
  5. Step 5: Solve for x
    x = 12,530,619,851.90/127,696.08
  6. Step 6: Final answer
    x = 98,128.46

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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.