Home / 212,817.20-318,966.60-94,362.80

Finding the Fourth Proportional to 212,817.20, 318,966.60 and 94,362.80

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Solution

The fourth proportional to 212,817.20, 318,966.60 and 94,362.80 is: 141,429.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,817.20 : 318,966.60 = 94,362.80 : x
  2. Step 2: Convert to fraction form
    212,817.20/318,966.60 = 94,362.80/x
  3. Step 3: Cross multiply
    212,817.20x = 318,966.60 × 94,362.80
  4. Step 4: Simplify right side
    212,817.20x = 30,098,581,482.48
  5. Step 5: Solve for x
    x = 30,098,581,482.48/212,817.20
  6. Step 6: Final answer
    x = 141,429.27

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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.