Home / 162,140.20-243,211.11-73,289.68

Finding the Fourth Proportional to 162,140.20, 243,211.11 and 73,289.68

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Solution

The fourth proportional to 162,140.20, 243,211.11 and 73,289.68 is: 109,934.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,140.20 : 243,211.11 = 73,289.68 : x
  2. Step 2: Convert to fraction form
    162,140.20/243,211.11 = 73,289.68/x
  3. Step 3: Cross multiply
    162,140.20x = 243,211.11 × 73,289.68
  4. Step 4: Simplify right side
    162,140.20x = 17,824,864,424.34
  5. Step 5: Solve for x
    x = 17,824,864,424.34/162,140.20
  6. Step 6: Final answer
    x = 109,934.89

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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.