Home / 181,151.11-249,996.34-100,578.64

Finding the Fourth Proportional to 181,151.11, 249,996.34 and 100,578.64

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Solution

The fourth proportional to 181,151.11, 249,996.34 and 100,578.64 is: 138,802.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,151.11 : 249,996.34 = 100,578.64 : x
  2. Step 2: Convert to fraction form
    181,151.11/249,996.34 = 100,578.64/x
  3. Step 3: Cross multiply
    181,151.11x = 249,996.34 × 100,578.64
  4. Step 4: Simplify right side
    181,151.11x = 25,144,291,882.18
  5. Step 5: Solve for x
    x = 25,144,291,882.18/181,151.11
  6. Step 6: Final answer
    x = 138,802.86

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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.