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Finding the Fourth Proportional to 181,082.21, 249,889.59 and 100,504.89

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Solution

The fourth proportional to 181,082.21, 249,889.59 and 100,504.89 is: 138,694.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,082.21 : 249,889.59 = 100,504.89 : x
  2. Step 2: Convert to fraction form
    181,082.21/249,889.59 = 100,504.89/x
  3. Step 3: Cross multiply
    181,082.21x = 249,889.59 × 100,504.89
  4. Step 4: Simplify right side
    181,082.21x = 25,115,125,755.10
  5. Step 5: Solve for x
    x = 25,115,125,755.10/181,082.21
  6. Step 6: Final answer
    x = 138,694.61

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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.