Home / 127,637.76-176,146.18-71,049.12

Finding the Fourth Proportional to 127,637.76, 176,146.18 and 71,049.12

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Solution

The fourth proportional to 127,637.76, 176,146.18 and 71,049.12 is: 98,051.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,637.76 : 176,146.18 = 71,049.12 : x
  2. Step 2: Convert to fraction form
    127,637.76/176,146.18 = 71,049.12/x
  3. Step 3: Cross multiply
    127,637.76x = 176,146.18 × 71,049.12
  4. Step 4: Simplify right side
    127,637.76x = 12,515,031,080.36
  5. Step 5: Solve for x
    x = 12,515,031,080.36/127,637.76
  6. Step 6: Final answer
    x = 98,051.17

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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.