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Finding the Fourth Proportional to 181,064.97, 249,864.90 and 100,490.42

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Solution

The fourth proportional to 181,064.97, 249,864.90 and 100,490.42 is: 138,674.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,064.97 : 249,864.90 = 100,490.42 : x
  2. Step 2: Convert to fraction form
    181,064.97/249,864.90 = 100,490.42/x
  3. Step 3: Cross multiply
    181,064.97x = 249,864.90 × 100,490.42
  4. Step 4: Simplify right side
    181,064.97x = 25,109,029,557.34
  5. Step 5: Solve for x
    x = 25,109,029,557.34/181,064.97
  6. Step 6: Final answer
    x = 138,674.14

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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.