Home / 141,313.20-195,012.18-77,655.12

Finding the Fourth Proportional to 141,313.20, 195,012.18 and 77,655.12

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Solution

The fourth proportional to 141,313.20, 195,012.18 and 77,655.12 is: 107,164.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,313.20 : 195,012.18 = 77,655.12 : x
  2. Step 2: Convert to fraction form
    141,313.20/195,012.18 = 77,655.12/x
  3. Step 3: Cross multiply
    141,313.20x = 195,012.18 × 77,655.12
  4. Step 4: Simplify right side
    141,313.20x = 15,143,694,239.36
  5. Step 5: Solve for x
    x = 15,143,694,239.36/141,313.20
  6. Step 6: Final answer
    x = 107,164.05

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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.