Home / 126,002.20-189,392.10-123,669.40

Finding the Fourth Proportional to 126,002.20, 189,392.10 and 123,669.40

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Solution

The fourth proportional to 126,002.20, 189,392.10 and 123,669.40 is: 185,885.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,002.20 : 189,392.10 = 123,669.40 : x
  2. Step 2: Convert to fraction form
    126,002.20/189,392.10 = 123,669.40/x
  3. Step 3: Cross multiply
    126,002.20x = 189,392.10 × 123,669.40
  4. Step 4: Simplify right side
    126,002.20x = 23,422,007,371.74
  5. Step 5: Solve for x
    x = 23,422,007,371.74/126,002.20
  6. Step 6: Final answer
    x = 185,885.70

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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.