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Finding the Fourth Proportional to 181,104.62, 249,919.68 and 100,530.06

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Solution

The fourth proportional to 181,104.62, 249,919.68 and 100,530.06 is: 138,728.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,104.62 : 249,919.68 = 100,530.06 : x
  2. Step 2: Convert to fraction form
    181,104.62/249,919.68 = 100,530.06/x
  3. Step 3: Cross multiply
    181,104.62x = 249,919.68 × 100,530.06
  4. Step 4: Simplify right side
    181,104.62x = 25,124,440,425.58
  5. Step 5: Solve for x
    x = 25,124,440,425.58/181,104.62
  6. Step 6: Final answer
    x = 138,728.88

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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.