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Finding the Fourth Proportional to 181,042.16, 249,838.31 and 100,469.73

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Solution

The fourth proportional to 181,042.16, 249,838.31 and 100,469.73 is: 138,648.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,042.16 : 249,838.31 = 100,469.73 : x
  2. Step 2: Convert to fraction form
    181,042.16/249,838.31 = 100,469.73/x
  3. Step 3: Cross multiply
    181,042.16x = 249,838.31 × 100,469.73
  4. Step 4: Simplify right side
    181,042.16x = 25,101,187,047.01
  5. Step 5: Solve for x
    x = 25,101,187,047.01/181,042.16
  6. Step 6: Final answer
    x = 138,648.30

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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.