Home / 140,856.96-194,382.88-77,197.12

Finding the Fourth Proportional to 140,856.96, 194,382.88 and 77,197.12

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Solution

The fourth proportional to 140,856.96, 194,382.88 and 77,197.12 is: 106,532.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,856.96 : 194,382.88 = 77,197.12 : x
  2. Step 2: Convert to fraction form
    140,856.96/194,382.88 = 77,197.12/x
  3. Step 3: Cross multiply
    140,856.96x = 194,382.88 × 77,197.12
  4. Step 4: Simplify right side
    140,856.96x = 15,005,798,513.31
  5. Step 5: Solve for x
    x = 15,005,798,513.31/140,856.96
  6. Step 6: Final answer
    x = 106,532.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.