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Finding the Fourth Proportional to 136,040.85, 187,240.86 and 119,801.87

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Solution

The fourth proportional to 136,040.85, 187,240.86 and 119,801.87 is: 164,890.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,040.85 : 187,240.86 = 119,801.87 : x
  2. Step 2: Convert to fraction form
    136,040.85/187,240.86 = 119,801.87/x
  3. Step 3: Cross multiply
    136,040.85x = 187,240.86 × 119,801.87
  4. Step 4: Simplify right side
    136,040.85x = 22,431,804,232.20
  5. Step 5: Solve for x
    x = 22,431,804,232.20/136,040.85
  6. Step 6: Final answer
    x = 164,890.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.