Home / 212,518.89-318,630.37-94,126.05

Finding the Fourth Proportional to 212,518.89, 318,630.37 and 94,126.05

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Solution

The fourth proportional to 212,518.89, 318,630.37 and 94,126.05 is: 141,123.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,518.89 : 318,630.37 = 94,126.05 : x
  2. Step 2: Convert to fraction form
    212,518.89/318,630.37 = 94,126.05/x
  3. Step 3: Cross multiply
    212,518.89x = 318,630.37 × 94,126.05
  4. Step 4: Simplify right side
    212,518.89x = 29,991,418,138.14
  5. Step 5: Solve for x
    x = 29,991,418,138.14/212,518.89
  6. Step 6: Final answer
    x = 141,123.54

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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.