Home / 212,492.61-318,637.26-123,771.42

Finding the Fourth Proportional to 212,492.61, 318,637.26 and 123,771.42

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Solution

The fourth proportional to 212,492.61, 318,637.26 and 123,771.42 is: 185,597.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,492.61 : 318,637.26 = 123,771.42 : x
  2. Step 2: Convert to fraction form
    212,492.61/318,637.26 = 123,771.42/x
  3. Step 3: Cross multiply
    212,492.61x = 318,637.26 × 123,771.42
  4. Step 4: Simplify right side
    212,492.61x = 39,438,186,135.11
  5. Step 5: Solve for x
    x = 39,438,186,135.11/212,492.61
  6. Step 6: Final answer
    x = 185,597.92

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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.