Home / 143,791.08-215,688-38,610.06

Finding the Fourth Proportional to 143,791.08, 215,688 and 38,610.06

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Solution

The fourth proportional to 143,791.08, 215,688 and 38,610.06 is: 57,915.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,791.08 : 215,688 = 38,610.06 : x
  2. Step 2: Convert to fraction form
    143,791.08/215,688 = 38,610.06/x
  3. Step 3: Cross multiply
    143,791.08x = 215,688 × 38,610.06
  4. Step 4: Simplify right side
    143,791.08x = 8,327,726,621.28
  5. Step 5: Solve for x
    x = 8,327,726,621.28/143,791.08
  6. Step 6: Final answer
    x = 57,915.46

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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.