Home / 137,621.60-206,432.40-82,325.60

Finding the Fourth Proportional to 137,621.60, 206,432.40 and 82,325.60

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Solution

The fourth proportional to 137,621.60, 206,432.40 and 82,325.60 is: 123,488.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,621.60 : 206,432.40 = 82,325.60 : x
  2. Step 2: Convert to fraction form
    137,621.60/206,432.40 = 82,325.60/x
  3. Step 3: Cross multiply
    137,621.60x = 206,432.40 × 82,325.60
  4. Step 4: Simplify right side
    137,621.60x = 16,994,671,189.44
  5. Step 5: Solve for x
    x = 16,994,671,189.44/137,621.60
  6. Step 6: Final answer
    x = 123,488.40

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1.5x scale

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.