Home / 121,186.14-181,808.10-38,080.14

Finding the Fourth Proportional to 121,186.14, 181,808.10 and 38,080.14

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Solution

The fourth proportional to 121,186.14, 181,808.10 and 38,080.14 is: 57,129.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,186.14 : 181,808.10 = 38,080.14 : x
  2. Step 2: Convert to fraction form
    121,186.14/181,808.10 = 38,080.14/x
  3. Step 3: Cross multiply
    121,186.14x = 181,808.10 × 38,080.14
  4. Step 4: Simplify right side
    121,186.14x = 6,923,277,901.13
  5. Step 5: Solve for x
    x = 6,923,277,901.13/121,186.14
  6. Step 6: Final answer
    x = 57,129.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.