Home / 100,442.07-150,522.27-72,229.38

Finding the Fourth Proportional to 100,442.07, 150,522.27 and 72,229.38

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Solution

The fourth proportional to 100,442.07, 150,522.27 and 72,229.38 is: 108,242.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,442.07 : 150,522.27 = 72,229.38 : x
  2. Step 2: Convert to fraction form
    100,442.07/150,522.27 = 72,229.38/x
  3. Step 3: Cross multiply
    100,442.07x = 150,522.27 × 72,229.38
  4. Step 4: Simplify right side
    100,442.07x = 10,872,130,238.29
  5. Step 5: Solve for x
    x = 10,872,130,238.29/100,442.07
  6. Step 6: Final answer
    x = 108,242.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.