Home / 126,642.12-175,565.35-119,900.76

Finding the Fourth Proportional to 126,642.12, 175,565.35 and 119,900.76

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Solution

The fourth proportional to 126,642.12, 175,565.35 and 119,900.76 is: 166,219.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,642.12 : 175,565.35 = 119,900.76 : x
  2. Step 2: Convert to fraction form
    126,642.12/175,565.35 = 119,900.76/x
  3. Step 3: Cross multiply
    126,642.12x = 175,565.35 × 119,900.76
  4. Step 4: Simplify right side
    126,642.12x = 21,050,418,295.16
  5. Step 5: Solve for x
    x = 21,050,418,295.16/126,642.12
  6. Step 6: Final answer
    x = 166,219.72

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.