Home / 181,151.12-249,996.36-100,578.66

Finding the Fourth Proportional to 181,151.12, 249,996.36 and 100,578.66

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Solution

The fourth proportional to 181,151.12, 249,996.36 and 100,578.66 is: 138,802.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,151.12 : 249,996.36 = 100,578.66 : x
  2. Step 2: Convert to fraction form
    181,151.12/249,996.36 = 100,578.66/x
  3. Step 3: Cross multiply
    181,151.12x = 249,996.36 × 100,578.66
  4. Step 4: Simplify right side
    181,151.12x = 25,144,298,893.68
  5. Step 5: Solve for x
    x = 25,144,298,893.68/181,151.12
  6. Step 6: Final answer
    x = 138,802.89

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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.