Home / 127,760.16-176,309.28-71,173.56

Finding the Fourth Proportional to 127,760.16, 176,309.28 and 71,173.56

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Solution

The fourth proportional to 127,760.16, 176,309.28 and 71,173.56 is: 98,219.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,760.16 : 176,309.28 = 71,173.56 : x
  2. Step 2: Convert to fraction form
    127,760.16/176,309.28 = 71,173.56/x
  3. Step 3: Cross multiply
    127,760.16x = 176,309.28 × 71,173.56
  4. Step 4: Simplify right side
    127,760.16x = 12,548,559,118.64
  5. Step 5: Solve for x
    x = 12,548,559,118.64/127,760.16
  6. Step 6: Final answer
    x = 98,219.66

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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.