Home / 162,428.08-243,478.50-67,710.66

Finding the Fourth Proportional to 162,428.08, 243,478.50 and 67,710.66

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Solution

The fourth proportional to 162,428.08, 243,478.50 and 67,710.66 is: 101,497.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,428.08 : 243,478.50 = 67,710.66 : x
  2. Step 2: Convert to fraction form
    162,428.08/243,478.50 = 67,710.66/x
  3. Step 3: Cross multiply
    162,428.08x = 243,478.50 × 67,710.66
  4. Step 4: Simplify right side
    162,428.08x = 16,486,089,930.81
  5. Step 5: Solve for x
    x = 16,486,089,930.81/162,428.08
  6. Step 6: Final answer
    x = 101,497.78

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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.