Home / 212,470.02-318,737.70-72,195.84

Finding the Fourth Proportional to 212,470.02, 318,737.70 and 72,195.84

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Solution

The fourth proportional to 212,470.02, 318,737.70 and 72,195.84 is: 108,304.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,470.02 : 318,737.70 = 72,195.84 : x
  2. Step 2: Convert to fraction form
    212,470.02/318,737.70 = 72,195.84/x
  3. Step 3: Cross multiply
    212,470.02x = 318,737.70 × 72,195.84
  4. Step 4: Simplify right side
    212,470.02x = 23,011,535,991.17
  5. Step 5: Solve for x
    x = 23,011,535,991.17/212,470.02
  6. Step 6: Final answer
    x = 108,304.86

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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.