Home / 212,069.52-318,148.02-71,824.50

Finding the Fourth Proportional to 212,069.52, 318,148.02 and 71,824.50

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Solution

The fourth proportional to 212,069.52, 318,148.02 and 71,824.50 is: 107,751.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,069.52 : 318,148.02 = 71,824.50 : x
  2. Step 2: Convert to fraction form
    212,069.52/318,148.02 = 71,824.50/x
  3. Step 3: Cross multiply
    212,069.52x = 318,148.02 × 71,824.50
  4. Step 4: Simplify right side
    212,069.52x = 22,850,822,462.49
  5. Step 5: Solve for x
    x = 22,850,822,462.49/212,069.52
  6. Step 6: Final answer
    x = 107,751.56

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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.