Home / 141,602.13-195,416.15-77,942.61

Finding the Fourth Proportional to 141,602.13, 195,416.15 and 77,942.61

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Solution

The fourth proportional to 141,602.13, 195,416.15 and 77,942.61 is: 107,563.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,602.13 : 195,416.15 = 77,942.61 : x
  2. Step 2: Convert to fraction form
    141,602.13/195,416.15 = 77,942.61/x
  3. Step 3: Cross multiply
    141,602.13x = 195,416.15 × 77,942.61
  4. Step 4: Simplify right side
    141,602.13x = 15,231,244,377.44
  5. Step 5: Solve for x
    x = 15,231,244,377.44/141,602.13
  6. Step 6: Final answer
    x = 107,563.67

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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.