Home / 143,610.30-215,512.65-64,683.90

Finding the Fourth Proportional to 143,610.30, 215,512.65 and 64,683.90

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Solution

The fourth proportional to 143,610.30, 215,512.65 and 64,683.90 is: 97,069.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,610.30 : 215,512.65 = 64,683.90 : x
  2. Step 2: Convert to fraction form
    143,610.30/215,512.65 = 64,683.90/x
  3. Step 3: Cross multiply
    143,610.30x = 215,512.65 × 64,683.90
  4. Step 4: Simplify right side
    143,610.30x = 13,940,198,701.34
  5. Step 5: Solve for x
    x = 13,940,198,701.34/143,610.30
  6. Step 6: Final answer
    x = 97,069.63

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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.