Home / 87,867.40-131,801.10-83,566.60

Finding the Fourth Proportional to 87,867.40, 131,801.10 and 83,566.60

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Solution

The fourth proportional to 87,867.40, 131,801.10 and 83,566.60 is: 125,349.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,867.40 : 131,801.10 = 83,566.60 : x
  2. Step 2: Convert to fraction form
    87,867.40/131,801.10 = 83,566.60/x
  3. Step 3: Cross multiply
    87,867.40x = 131,801.10 × 83,566.60
  4. Step 4: Simplify right side
    87,867.40x = 11,014,169,803.26
  5. Step 5: Solve for x
    x = 11,014,169,803.26/87,867.40
  6. Step 6: Final answer
    x = 125,349.90

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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.