Home / 142,909.02-197,169.06-82,471.68

Finding the Fourth Proportional to 142,909.02, 197,169.06 and 82,471.68

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Solution

The fourth proportional to 142,909.02, 197,169.06 and 82,471.68 is: 113,784.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,909.02 : 197,169.06 = 82,471.68 : x
  2. Step 2: Convert to fraction form
    142,909.02/197,169.06 = 82,471.68/x
  3. Step 3: Cross multiply
    142,909.02x = 197,169.06 × 82,471.68
  4. Step 4: Simplify right side
    142,909.02x = 16,260,863,622.22
  5. Step 5: Solve for x
    x = 16,260,863,622.22/142,909.02
  6. Step 6: Final answer
    x = 113,784.73

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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.