Home / 142,049.28-195,962.88-82,421.76

Finding the Fourth Proportional to 142,049.28, 195,962.88 and 82,421.76

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Solution

The fourth proportional to 142,049.28, 195,962.88 and 82,421.76 is: 113,704.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,049.28 : 195,962.88 = 82,421.76 : x
  2. Step 2: Convert to fraction form
    142,049.28/195,962.88 = 82,421.76/x
  3. Step 3: Cross multiply
    142,049.28x = 195,962.88 × 82,421.76
  4. Step 4: Simplify right side
    142,049.28x = 16,151,605,464.27
  5. Step 5: Solve for x
    x = 16,151,605,464.27/142,049.28
  6. Step 6: Final answer
    x = 113,704.24

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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.