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Finding the Fourth Proportional to 181,063.68, 249,864.12 and 100,486.52

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Solution

The fourth proportional to 181,063.68, 249,864.12 and 100,486.52 is: 138,669.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,063.68 : 249,864.12 = 100,486.52 : x
  2. Step 2: Convert to fraction form
    181,063.68/249,864.12 = 100,486.52/x
  3. Step 3: Cross multiply
    181,063.68x = 249,864.12 × 100,486.52
  4. Step 4: Simplify right side
    181,063.68x = 25,107,975,891.66
  5. Step 5: Solve for x
    x = 25,107,975,891.66/181,063.68
  6. Step 6: Final answer
    x = 138,669.31

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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.