Home / 181,949.17-251,091.56-100,280.34

Finding the Fourth Proportional to 181,949.17, 251,091.56 and 100,280.34

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Solution

The fourth proportional to 181,949.17, 251,091.56 and 100,280.34 is: 138,387.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,949.17 : 251,091.56 = 100,280.34 : x
  2. Step 2: Convert to fraction form
    181,949.17/251,091.56 = 100,280.34/x
  3. Step 3: Cross multiply
    181,949.17x = 251,091.56 × 100,280.34
  4. Step 4: Simplify right side
    181,949.17x = 25,179,547,007.93
  5. Step 5: Solve for x
    x = 25,179,547,007.93/181,949.17
  6. Step 6: Final answer
    x = 138,387.81

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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.