Home / 243,985.48-365,940.78-66,506.72

Finding the Fourth Proportional to 243,985.48, 365,940.78 and 66,506.72

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Solution

The fourth proportional to 243,985.48, 365,940.78 and 66,506.72 is: 99,749.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,985.48 : 365,940.78 = 66,506.72 : x
  2. Step 2: Convert to fraction form
    243,985.48/365,940.78 = 66,506.72/x
  3. Step 3: Cross multiply
    243,985.48x = 365,940.78 × 66,506.72
  4. Step 4: Simplify right side
    243,985.48x = 24,337,520,992.04
  5. Step 5: Solve for x
    x = 24,337,520,992.04/243,985.48
  6. Step 6: Final answer
    x = 99,749.87

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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.