Home / 140,161.52-210,122.20-61,217.84

Finding the Fourth Proportional to 140,161.52, 210,122.20 and 61,217.84

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Solution

The fourth proportional to 140,161.52, 210,122.20 and 61,217.84 is: 91,774.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,161.52 : 210,122.20 = 61,217.84 : x
  2. Step 2: Convert to fraction form
    140,161.52/210,122.20 = 61,217.84/x
  3. Step 3: Cross multiply
    140,161.52x = 210,122.20 × 61,217.84
  4. Step 4: Simplify right side
    140,161.52x = 12,863,227,220.05
  5. Step 5: Solve for x
    x = 12,863,227,220.05/140,161.52
  6. Step 6: Final answer
    x = 91,774.31

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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.