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Finding the Fourth Proportional to 181,031.36, 249,800.36 and 100,447.70

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Solution

The fourth proportional to 181,031.36, 249,800.36 and 100,447.70 is: 138,605.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,031.36 : 249,800.36 = 100,447.70 : x
  2. Step 2: Convert to fraction form
    181,031.36/249,800.36 = 100,447.70/x
  3. Step 3: Cross multiply
    181,031.36x = 249,800.36 × 100,447.70
  4. Step 4: Simplify right side
    181,031.36x = 25,091,869,869.93
  5. Step 5: Solve for x
    x = 25,091,869,869.93/181,031.36
  6. Step 6: Final answer
    x = 138,605.10

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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.