Home / 230,047.20-345,200.40-89,787.60

Finding the Fourth Proportional to 230,047.20, 345,200.40 and 89,787.60

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Solution

The fourth proportional to 230,047.20, 345,200.40 and 89,787.60 is: 134,731.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,047.20 : 345,200.40 = 89,787.60 : x
  2. Step 2: Convert to fraction form
    230,047.20/345,200.40 = 89,787.60/x
  3. Step 3: Cross multiply
    230,047.20x = 345,200.40 × 89,787.60
  4. Step 4: Simplify right side
    230,047.20x = 30,994,715,435.04
  5. Step 5: Solve for x
    x = 30,994,715,435.04/230,047.20
  6. Step 6: Final answer
    x = 134,731.98

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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.