Home / 221,835.20-306,132.57-119,860.69

Finding the Fourth Proportional to 221,835.20, 306,132.57 and 119,860.69

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Solution

The fourth proportional to 221,835.20, 306,132.57 and 119,860.69 is: 165,407.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,835.20 : 306,132.57 = 119,860.69 : x
  2. Step 2: Convert to fraction form
    221,835.20/306,132.57 = 119,860.69/x
  3. Step 3: Cross multiply
    221,835.20x = 306,132.57 × 119,860.69
  4. Step 4: Simplify right side
    221,835.20x = 36,693,261,071.67
  5. Step 5: Solve for x
    x = 36,693,261,071.67/221,835.20
  6. Step 6: Final answer
    x = 165,407.75

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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.