Home / 212,827.20-318,981.60-94,372.80

Finding the Fourth Proportional to 212,827.20, 318,981.60 and 94,372.80

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Solution

The fourth proportional to 212,827.20, 318,981.60 and 94,372.80 is: 141,444.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,827.20 : 318,981.60 = 94,372.80 : x
  2. Step 2: Convert to fraction form
    212,827.20/318,981.60 = 94,372.80/x
  3. Step 3: Cross multiply
    212,827.20x = 318,981.60 × 94,372.80
  4. Step 4: Simplify right side
    212,827.20x = 30,103,186,740.48
  5. Step 5: Solve for x
    x = 30,103,186,740.48/212,827.20
  6. Step 6: Final answer
    x = 141,444.26

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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.