Home / 126,178.20-189,340.20-47,300.40

Finding the Fourth Proportional to 126,178.20, 189,340.20 and 47,300.40

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Solution

The fourth proportional to 126,178.20, 189,340.20 and 47,300.40 is: 70,977.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,178.20 : 189,340.20 = 47,300.40 : x
  2. Step 2: Convert to fraction form
    126,178.20/189,340.20 = 47,300.40/x
  3. Step 3: Cross multiply
    126,178.20x = 189,340.20 × 47,300.40
  4. Step 4: Simplify right side
    126,178.20x = 8,955,867,196.08
  5. Step 5: Solve for x
    x = 8,955,867,196.08/126,178.20
  6. Step 6: Final answer
    x = 70,977.93

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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.