Home / 129,581.64-194,290.92-54,663.12

Finding the Fourth Proportional to 129,581.64, 194,290.92 and 54,663.12

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Solution

The fourth proportional to 129,581.64, 194,290.92 and 54,663.12 is: 81,960.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,581.64 : 194,290.92 = 54,663.12 : x
  2. Step 2: Convert to fraction form
    129,581.64/194,290.92 = 54,663.12/x
  3. Step 3: Cross multiply
    129,581.64x = 194,290.92 × 54,663.12
  4. Step 4: Simplify right side
    129,581.64x = 10,620,547,874.87
  5. Step 5: Solve for x
    x = 10,620,547,874.87/129,581.64
  6. Step 6: Final answer
    x = 81,960.28

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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.