Home / 181,093.05-249,908.20-100,520.38

Finding the Fourth Proportional to 181,093.05, 249,908.20 and 100,520.38

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Solution

The fourth proportional to 181,093.05, 249,908.20 and 100,520.38 is: 138,718.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,093.05 : 249,908.20 = 100,520.38 : x
  2. Step 2: Convert to fraction form
    181,093.05/249,908.20 = 100,520.38/x
  3. Step 3: Cross multiply
    181,093.05x = 249,908.20 × 100,520.38
  4. Step 4: Simplify right side
    181,093.05x = 25,120,867,229.12
  5. Step 5: Solve for x
    x = 25,120,867,229.12/181,093.05
  6. Step 6: Final answer
    x = 138,718.01

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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.