Home / 122,196.20-183,294.30-107,421.80

Finding the Fourth Proportional to 122,196.20, 183,294.30 and 107,421.80

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Solution

The fourth proportional to 122,196.20, 183,294.30 and 107,421.80 is: 161,132.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,196.20 : 183,294.30 = 107,421.80 : x
  2. Step 2: Convert to fraction form
    122,196.20/183,294.30 = 107,421.80/x
  3. Step 3: Cross multiply
    122,196.20x = 183,294.30 × 107,421.80
  4. Step 4: Simplify right side
    122,196.20x = 19,689,803,635.74
  5. Step 5: Solve for x
    x = 19,689,803,635.74/122,196.20
  6. Step 6: Final answer
    x = 161,132.70

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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.