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Finding the Fourth Proportional to 143,589.77, 215,416.77 and 43,757.77

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Solution

The fourth proportional to 143,589.77, 215,416.77 and 43,757.77 is: 65,646.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,589.77 : 215,416.77 = 43,757.77 : x
  2. Step 2: Convert to fraction form
    143,589.77/215,416.77 = 43,757.77/x
  3. Step 3: Cross multiply
    143,589.77x = 215,416.77 × 43,757.77
  4. Step 4: Simplify right side
    143,589.77x = 9,426,157,475.80
  5. Step 5: Solve for x
    x = 9,426,157,475.80/143,589.77
  6. Step 6: Final answer
    x = 65,646.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.