Home / 127,717.95-176,256.24-71,129.33

Finding the Fourth Proportional to 127,717.95, 176,256.24 and 71,129.33

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Solution

The fourth proportional to 127,717.95, 176,256.24 and 71,129.33 is: 98,161.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,717.95 : 176,256.24 = 71,129.33 : x
  2. Step 2: Convert to fraction form
    127,717.95/176,256.24 = 71,129.33/x
  3. Step 3: Cross multiply
    127,717.95x = 176,256.24 × 71,129.33
  4. Step 4: Simplify right side
    127,717.95x = 12,536,987,378.24
  5. Step 5: Solve for x
    x = 12,536,987,378.24/127,717.95
  6. Step 6: Final answer
    x = 98,161.51

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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.