Home / 162,581.66-243,916.32-67,780.34

Finding the Fourth Proportional to 162,581.66, 243,916.32 and 67,780.34

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Solution

The fourth proportional to 162,581.66, 243,916.32 and 67,780.34 is: 101,688.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,581.66 : 243,916.32 = 67,780.34 : x
  2. Step 2: Convert to fraction form
    162,581.66/243,916.32 = 67,780.34/x
  3. Step 3: Cross multiply
    162,581.66x = 243,916.32 × 67,780.34
  4. Step 4: Simplify right side
    162,581.66x = 16,532,731,101.15
  5. Step 5: Solve for x
    x = 16,532,731,101.15/162,581.66
  6. Step 6: Final answer
    x = 101,688.78

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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.