Home / 181,108.20-249,930.97-100,543.38

Finding the Fourth Proportional to 181,108.20, 249,930.97 and 100,543.38

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Solution

The fourth proportional to 181,108.20, 249,930.97 and 100,543.38 is: 138,750.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,108.20 : 249,930.97 = 100,543.38 : x
  2. Step 2: Convert to fraction form
    181,108.20/249,930.97 = 100,543.38/x
  3. Step 3: Cross multiply
    181,108.20x = 249,930.97 × 100,543.38
  4. Step 4: Simplify right side
    181,108.20x = 25,128,903,301.88
  5. Step 5: Solve for x
    x = 25,128,903,301.88/181,108.20
  6. Step 6: Final answer
    x = 138,750.77

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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.