Home / 129,076.16-193,518.08-54,218.24

Finding the Fourth Proportional to 129,076.16, 193,518.08 and 54,218.24

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Solution

The fourth proportional to 129,076.16, 193,518.08 and 54,218.24 is: 81,286.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,076.16 : 193,518.08 = 54,218.24 : x
  2. Step 2: Convert to fraction form
    129,076.16/193,518.08 = 54,218.24/x
  3. Step 3: Cross multiply
    129,076.16x = 193,518.08 × 54,218.24
  4. Step 4: Simplify right side
    129,076.16x = 10,492,209,705.78
  5. Step 5: Solve for x
    x = 10,492,209,705.78/129,076.16
  6. Step 6: Final answer
    x = 81,286.97

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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.