Home / 129,746.40-194,619.60-112,250.40

Finding the Fourth Proportional to 129,746.40, 194,619.60 and 112,250.40

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Solution

The fourth proportional to 129,746.40, 194,619.60 and 112,250.40 is: 168,375.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,746.40 : 194,619.60 = 112,250.40 : x
  2. Step 2: Convert to fraction form
    129,746.40/194,619.60 = 112,250.40/x
  3. Step 3: Cross multiply
    129,746.40x = 194,619.60 × 112,250.40
  4. Step 4: Simplify right side
    129,746.40x = 21,846,127,947.84
  5. Step 5: Solve for x
    x = 21,846,127,947.84/129,746.40
  6. Step 6: Final answer
    x = 168,375.60

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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.