Home / 212,188.85-318,322.64-70,044.03

Finding the Fourth Proportional to 212,188.85, 318,322.64 and 70,044.03

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Solution

The fourth proportional to 212,188.85, 318,322.64 and 70,044.03 is: 105,079.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,188.85 : 318,322.64 = 70,044.03 : x
  2. Step 2: Convert to fraction form
    212,188.85/318,322.64 = 70,044.03/x
  3. Step 3: Cross multiply
    212,188.85x = 318,322.64 × 70,044.03
  4. Step 4: Simplify right side
    212,188.85x = 22,296,600,195.62
  5. Step 5: Solve for x
    x = 22,296,600,195.62/212,188.85
  6. Step 6: Final answer
    x = 105,079.04

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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.