Home / 83,749.20-125,623.80-82,874.40

Finding the Fourth Proportional to 83,749.20, 125,623.80 and 82,874.40

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Solution

The fourth proportional to 83,749.20, 125,623.80 and 82,874.40 is: 124,311.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,749.20 : 125,623.80 = 82,874.40 : x
  2. Step 2: Convert to fraction form
    83,749.20/125,623.80 = 82,874.40/x
  3. Step 3: Cross multiply
    83,749.20x = 125,623.80 × 82,874.40
  4. Step 4: Simplify right side
    83,749.20x = 10,410,997,050.72
  5. Step 5: Solve for x
    x = 10,410,997,050.72/83,749.20
  6. Step 6: Final answer
    x = 124,311.60

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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.