Home / 212,928.55-319,343.58-63,132.72

Finding the Fourth Proportional to 212,928.55, 319,343.58 and 63,132.72

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Solution

The fourth proportional to 212,928.55, 319,343.58 and 63,132.72 is: 94,684.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,928.55 : 319,343.58 = 63,132.72 : x
  2. Step 2: Convert to fraction form
    212,928.55/319,343.58 = 63,132.72/x
  3. Step 3: Cross multiply
    212,928.55x = 319,343.58 × 63,132.72
  4. Step 4: Simplify right side
    212,928.55x = 20,161,027,622.40
  5. Step 5: Solve for x
    x = 20,161,027,622.40/212,928.55
  6. Step 6: Final answer
    x = 94,684.47

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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.