Home / 127,608.26-176,159.76-85,195.04

Finding the Fourth Proportional to 127,608.26, 176,159.76 and 85,195.04

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Solution

The fourth proportional to 127,608.26, 176,159.76 and 85,195.04 is: 117,609.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,608.26 : 176,159.76 = 85,195.04 : x
  2. Step 2: Convert to fraction form
    127,608.26/176,159.76 = 85,195.04/x
  3. Step 3: Cross multiply
    127,608.26x = 176,159.76 × 85,195.04
  4. Step 4: Simplify right side
    127,608.26x = 15,007,937,799.59
  5. Step 5: Solve for x
    x = 15,007,937,799.59/127,608.26
  6. Step 6: Final answer
    x = 117,609.45

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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.