Home / 181,012.28-249,793.11-100,438.07

Finding the Fourth Proportional to 181,012.28, 249,793.11 and 100,438.07

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Solution

The fourth proportional to 181,012.28, 249,793.11 and 100,438.07 is: 138,602.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,012.28 : 249,793.11 = 100,438.07 : x
  2. Step 2: Convert to fraction form
    181,012.28/249,793.11 = 100,438.07/x
  3. Step 3: Cross multiply
    181,012.28x = 249,793.11 × 100,438.07
  4. Step 4: Simplify right side
    181,012.28x = 25,088,737,867.70
  5. Step 5: Solve for x
    x = 25,088,737,867.70/181,012.28
  6. Step 6: Final answer
    x = 138,602.41

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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.