Home / 126,122.77-189,178.69-31,350.95

Finding the Fourth Proportional to 126,122.77, 189,178.69 and 31,350.95

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Solution

The fourth proportional to 126,122.77, 189,178.69 and 31,350.95 is: 47,025.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,122.77 : 189,178.69 = 31,350.95 : x
  2. Step 2: Convert to fraction form
    126,122.77/189,178.69 = 31,350.95/x
  3. Step 3: Cross multiply
    126,122.77x = 189,178.69 × 31,350.95
  4. Step 4: Simplify right side
    126,122.77x = 5,930,931,494.50
  5. Step 5: Solve for x
    x = 5,930,931,494.50/126,122.77
  6. Step 6: Final answer
    x = 47,025.07

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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.