Home / 143,811.90-215,717.85-73,827.90

Finding the Fourth Proportional to 143,811.90, 215,717.85 and 73,827.90

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Solution

The fourth proportional to 143,811.90, 215,717.85 and 73,827.90 is: 110,741.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,811.90 : 215,717.85 = 73,827.90 : x
  2. Step 2: Convert to fraction form
    143,811.90/215,717.85 = 73,827.90/x
  3. Step 3: Cross multiply
    143,811.90x = 215,717.85 × 73,827.90
  4. Step 4: Simplify right side
    143,811.90x = 15,925,995,858.02
  5. Step 5: Solve for x
    x = 15,925,995,858.02/143,811.90
  6. Step 6: Final answer
    x = 110,741.85

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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.