Home / 141,313.80-195,012.82-77,655.62

Finding the Fourth Proportional to 141,313.80, 195,012.82 and 77,655.62

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Solution

The fourth proportional to 141,313.80, 195,012.82 and 77,655.62 is: 107,164.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,313.80 : 195,012.82 = 77,655.62 : x
  2. Step 2: Convert to fraction form
    141,313.80/195,012.82 = 77,655.62/x
  3. Step 3: Cross multiply
    141,313.80x = 195,012.82 × 77,655.62
  4. Step 4: Simplify right side
    141,313.80x = 15,143,841,445.05
  5. Step 5: Solve for x
    x = 15,143,841,445.05/141,313.80
  6. Step 6: Final answer
    x = 107,164.63

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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.