Home / 129,743.40-194,615.10-112,247.40

Finding the Fourth Proportional to 129,743.40, 194,615.10 and 112,247.40

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Solution

The fourth proportional to 129,743.40, 194,615.10 and 112,247.40 is: 168,371.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,743.40 : 194,615.10 = 112,247.40 : x
  2. Step 2: Convert to fraction form
    129,743.40/194,615.10 = 112,247.40/x
  3. Step 3: Cross multiply
    129,743.40x = 194,615.10 × 112,247.40
  4. Step 4: Simplify right side
    129,743.40x = 21,845,038,975.74
  5. Step 5: Solve for x
    x = 21,845,038,975.74/129,743.40
  6. Step 6: Final answer
    x = 168,371.10

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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.