Home / 197,589.12-272,675.16-112,711.20

Finding the Fourth Proportional to 197,589.12, 272,675.16 and 112,711.20

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Solution

The fourth proportional to 197,589.12, 272,675.16 and 112,711.20 is: 155,542.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,589.12 : 272,675.16 = 112,711.20 : x
  2. Step 2: Convert to fraction form
    197,589.12/272,675.16 = 112,711.20/x
  3. Step 3: Cross multiply
    197,589.12x = 272,675.16 × 112,711.20
  4. Step 4: Simplify right side
    197,589.12x = 30,733,544,493.79
  5. Step 5: Solve for x
    x = 30,733,544,493.79/197,589.12
  6. Step 6: Final answer
    x = 155,542.70

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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.