Home / 87,604.40-131,406.60-86,682.80

Finding the Fourth Proportional to 87,604.40, 131,406.60 and 86,682.80

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Solution

The fourth proportional to 87,604.40, 131,406.60 and 86,682.80 is: 130,024.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,604.40 : 131,406.60 = 86,682.80 : x
  2. Step 2: Convert to fraction form
    87,604.40/131,406.60 = 86,682.80/x
  3. Step 3: Cross multiply
    87,604.40x = 131,406.60 × 86,682.80
  4. Step 4: Simplify right side
    87,604.40x = 11,390,692,026.48
  5. Step 5: Solve for x
    x = 11,390,692,026.48/87,604.40
  6. Step 6: Final answer
    x = 130,024.20

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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.