Home / 181,971.20-251,127.99-101,398.79

Finding the Fourth Proportional to 181,971.20, 251,127.99 and 101,398.79

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Solution

The fourth proportional to 181,971.20, 251,127.99 and 101,398.79 is: 139,934.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,971.20 : 251,127.99 = 101,398.79 : x
  2. Step 2: Convert to fraction form
    181,971.20/251,127.99 = 101,398.79/x
  3. Step 3: Cross multiply
    181,971.20x = 251,127.99 × 101,398.79
  4. Step 4: Simplify right side
    181,971.20x = 25,464,074,948.95
  5. Step 5: Solve for x
    x = 25,464,074,948.95/181,971.20
  6. Step 6: Final answer
    x = 139,934.64

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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.