Home / 141,314.20-195,013.56-77,656.12

Finding the Fourth Proportional to 141,314.20, 195,013.56 and 77,656.12

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Solution

The fourth proportional to 141,314.20, 195,013.56 and 77,656.12 is: 107,165.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,314.20 : 195,013.56 = 77,656.12 : x
  2. Step 2: Convert to fraction form
    141,314.20/195,013.56 = 77,656.12/x
  3. Step 3: Cross multiply
    141,314.20x = 195,013.56 × 77,656.12
  4. Step 4: Simplify right side
    141,314.20x = 15,143,996,416.99
  5. Step 5: Solve for x
    x = 15,143,996,416.99/141,314.20
  6. Step 6: Final answer
    x = 107,165.43

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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.