Home / 162,611.20-243,456.72-103,299.76

Finding the Fourth Proportional to 162,611.20, 243,456.72 and 103,299.76

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Solution

The fourth proportional to 162,611.20, 243,456.72 and 103,299.76 is: 154,657.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,611.20 : 243,456.72 = 103,299.76 : x
  2. Step 2: Convert to fraction form
    162,611.20/243,456.72 = 103,299.76/x
  3. Step 3: Cross multiply
    162,611.20x = 243,456.72 × 103,299.76
  4. Step 4: Simplify right side
    162,611.20x = 25,149,020,746.39
  5. Step 5: Solve for x
    x = 25,149,020,746.39/162,611.20
  6. Step 6: Final answer
    x = 154,657.37

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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.