Home / 129,982.80-194,974.20-127,358.40

Finding the Fourth Proportional to 129,982.80, 194,974.20 and 127,358.40

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Solution

The fourth proportional to 129,982.80, 194,974.20 and 127,358.40 is: 191,037.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,982.80 : 194,974.20 = 127,358.40 : x
  2. Step 2: Convert to fraction form
    129,982.80/194,974.20 = 127,358.40/x
  3. Step 3: Cross multiply
    129,982.80x = 194,974.20 × 127,358.40
  4. Step 4: Simplify right side
    129,982.80x = 24,831,602,153.28
  5. Step 5: Solve for x
    x = 24,831,602,153.28/129,982.80
  6. Step 6: Final answer
    x = 191,037.60

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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.