Home / 212,302.08-318,433.68-72,044.64

Finding the Fourth Proportional to 212,302.08, 318,433.68 and 72,044.64

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Solution

The fourth proportional to 212,302.08, 318,433.68 and 72,044.64 is: 108,060.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,302.08 : 318,433.68 = 72,044.64 : x
  2. Step 2: Convert to fraction form
    212,302.08/318,433.68 = 72,044.64/x
  3. Step 3: Cross multiply
    212,302.08x = 318,433.68 × 72,044.64
  4. Step 4: Simplify right side
    212,302.08x = 22,941,439,839.48
  5. Step 5: Solve for x
    x = 22,941,439,839.48/212,302.08
  6. Step 6: Final answer
    x = 108,060.36

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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.