Home / 126,030.43-189,101.23-66,851.58

Finding the Fourth Proportional to 126,030.43, 189,101.23 and 66,851.58

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Solution

The fourth proportional to 126,030.43, 189,101.23 and 66,851.58 is: 100,306.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,030.43 : 189,101.23 = 66,851.58 : x
  2. Step 2: Convert to fraction form
    126,030.43/189,101.23 = 66,851.58/x
  3. Step 3: Cross multiply
    126,030.43x = 189,101.23 × 66,851.58
  4. Step 4: Simplify right side
    126,030.43x = 12,641,715,859.79
  5. Step 5: Solve for x
    x = 12,641,715,859.79/126,030.43
  6. Step 6: Final answer
    x = 100,306.85

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1.5x scale

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.