Home / 121,730.20-182,595.30-103,067.80

Finding the Fourth Proportional to 121,730.20, 182,595.30 and 103,067.80

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Solution

The fourth proportional to 121,730.20, 182,595.30 and 103,067.80 is: 154,601.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,730.20 : 182,595.30 = 103,067.80 : x
  2. Step 2: Convert to fraction form
    121,730.20/182,595.30 = 103,067.80/x
  3. Step 3: Cross multiply
    121,730.20x = 182,595.30 × 103,067.80
  4. Step 4: Simplify right side
    121,730.20x = 18,819,695,861.34
  5. Step 5: Solve for x
    x = 18,819,695,861.34/121,730.20
  6. Step 6: Final answer
    x = 154,601.70

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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.