Home / 141,905.32-195,834.00-81,486.71

Finding the Fourth Proportional to 141,905.32, 195,834.00 and 81,486.71

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Solution

The fourth proportional to 141,905.32, 195,834.00 and 81,486.71 is: 112,454.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,905.32 : 195,834.00 = 81,486.71 : x
  2. Step 2: Convert to fraction form
    141,905.32/195,834.00 = 81,486.71/x
  3. Step 3: Cross multiply
    141,905.32x = 195,834.00 × 81,486.71
  4. Step 4: Simplify right side
    141,905.32x = 15,957,868,426.92
  5. Step 5: Solve for x
    x = 15,957,868,426.92/141,905.32
  6. Step 6: Final answer
    x = 112,454.34

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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.