Home / 143,899.56-215,726.22-55,216.71

Finding the Fourth Proportional to 143,899.56, 215,726.22 and 55,216.71

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Solution

The fourth proportional to 143,899.56, 215,726.22 and 55,216.71 is: 82,777.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,899.56 : 215,726.22 = 55,216.71 : x
  2. Step 2: Convert to fraction form
    143,899.56/215,726.22 = 55,216.71/x
  3. Step 3: Cross multiply
    143,899.56x = 215,726.22 × 55,216.71
  4. Step 4: Simplify right side
    143,899.56x = 11,911,692,129.14
  5. Step 5: Solve for x
    x = 11,911,692,129.14/143,899.56
  6. Step 6: Final answer
    x = 82,777.82

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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.