Home / 143,739.77-215,642.45-43,914.15

Finding the Fourth Proportional to 143,739.77, 215,642.45 and 43,914.15

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Solution

The fourth proportional to 143,739.77, 215,642.45 and 43,914.15 is: 65,881.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,739.77 : 215,642.45 = 43,914.15 : x
  2. Step 2: Convert to fraction form
    143,739.77/215,642.45 = 43,914.15/x
  3. Step 3: Cross multiply
    143,739.77x = 215,642.45 × 43,914.15
  4. Step 4: Simplify right side
    143,739.77x = 9,469,755,005.45
  5. Step 5: Solve for x
    x = 9,469,755,005.45/143,739.77
  6. Step 6: Final answer
    x = 65,881.25

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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.