Home / 161,770.20-242,433.78-102,647.40

Finding the Fourth Proportional to 161,770.20, 242,433.78 and 102,647.40

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Solution

The fourth proportional to 161,770.20, 242,433.78 and 102,647.40 is: 153,830.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,770.20 : 242,433.78 = 102,647.40 : x
  2. Step 2: Convert to fraction form
    161,770.20/242,433.78 = 102,647.40/x
  3. Step 3: Cross multiply
    161,770.20x = 242,433.78 × 102,647.40
  4. Step 4: Simplify right side
    161,770.20x = 24,885,197,189.17
  5. Step 5: Solve for x
    x = 24,885,197,189.17/161,770.20
  6. Step 6: Final answer
    x = 153,830.54

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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.