Home / 130,246.40-194,851.20-112,908.80

Finding the Fourth Proportional to 130,246.40, 194,851.20 and 112,908.80

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Solution

The fourth proportional to 130,246.40, 194,851.20 and 112,908.80 is: 168,913.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,246.40 : 194,851.20 = 112,908.80 : x
  2. Step 2: Convert to fraction form
    130,246.40/194,851.20 = 112,908.80/x
  3. Step 3: Cross multiply
    130,246.40x = 194,851.20 × 112,908.80
  4. Step 4: Simplify right side
    130,246.40x = 22,000,415,170.56
  5. Step 5: Solve for x
    x = 22,000,415,170.56/130,246.40
  6. Step 6: Final answer
    x = 168,913.81

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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.