Home / 181,009.45-249,793.04-100,449.94

Finding the Fourth Proportional to 181,009.45, 249,793.04 and 100,449.94

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Solution

The fourth proportional to 181,009.45, 249,793.04 and 100,449.94 is: 138,620.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,009.45 : 249,793.04 = 100,449.94 : x
  2. Step 2: Convert to fraction form
    181,009.45/249,793.04 = 100,449.94/x
  3. Step 3: Cross multiply
    181,009.45x = 249,793.04 × 100,449.94
  4. Step 4: Simplify right side
    181,009.45x = 25,091,694,129.20
  5. Step 5: Solve for x
    x = 25,091,694,129.20/181,009.45
  6. Step 6: Final answer
    x = 138,620.91

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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.