Home / 142,074.24-213,061.20-47,278.80

Finding the Fourth Proportional to 142,074.24, 213,061.20 and 47,278.80

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Solution

The fourth proportional to 142,074.24, 213,061.20 and 47,278.80 is: 70,901.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,074.24 : 213,061.20 = 47,278.80 : x
  2. Step 2: Convert to fraction form
    142,074.24/213,061.20 = 47,278.80/x
  3. Step 3: Cross multiply
    142,074.24x = 213,061.20 × 47,278.80
  4. Step 4: Simplify right side
    142,074.24x = 10,073,277,862.56
  5. Step 5: Solve for x
    x = 10,073,277,862.56/142,074.24
  6. Step 6: Final answer
    x = 70,901.51

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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.