Home / 129,748.80-194,623.20-83,054.40

Finding the Fourth Proportional to 129,748.80, 194,623.20 and 83,054.40

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Solution

The fourth proportional to 129,748.80, 194,623.20 and 83,054.40 is: 124,581.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,748.80 : 194,623.20 = 83,054.40 : x
  2. Step 2: Convert to fraction form
    129,748.80/194,623.20 = 83,054.40/x
  3. Step 3: Cross multiply
    129,748.80x = 194,623.20 × 83,054.40
  4. Step 4: Simplify right side
    129,748.80x = 16,164,313,102.08
  5. Step 5: Solve for x
    x = 16,164,313,102.08/129,748.80
  6. Step 6: Final answer
    x = 124,581.60

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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.