Home / 136,147.98-187,856.46-79,548.42

Finding the Fourth Proportional to 136,147.98, 187,856.46 and 79,548.42

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Solution

The fourth proportional to 136,147.98, 187,856.46 and 79,548.42 is: 109,760.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,147.98 : 187,856.46 = 79,548.42 : x
  2. Step 2: Convert to fraction form
    136,147.98/187,856.46 = 79,548.42/x
  3. Step 3: Cross multiply
    136,147.98x = 187,856.46 × 79,548.42
  4. Step 4: Simplify right side
    136,147.98x = 14,943,684,579.79
  5. Step 5: Solve for x
    x = 14,943,684,579.79/136,147.98
  6. Step 6: Final answer
    x = 109,760.60

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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.