Home / 143,617.60-215,434.44-43,781.02

Finding the Fourth Proportional to 143,617.60, 215,434.44 and 43,781.02

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Solution

The fourth proportional to 143,617.60, 215,434.44 and 43,781.02 is: 65,673.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,617.60 : 215,434.44 = 43,781.02 : x
  2. Step 2: Convert to fraction form
    143,617.60/215,434.44 = 43,781.02/x
  3. Step 3: Cross multiply
    143,617.60x = 215,434.44 × 43,781.02
  4. Step 4: Simplify right side
    143,617.60x = 9,431,939,526.33
  5. Step 5: Solve for x
    x = 9,431,939,526.33/143,617.60
  6. Step 6: Final answer
    x = 65,673.98

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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.