Home / 87,331.60-130,997.40-69,835.60

Finding the Fourth Proportional to 87,331.60, 130,997.40 and 69,835.60

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Solution

The fourth proportional to 87,331.60, 130,997.40 and 69,835.60 is: 104,753.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,331.60 : 130,997.40 = 69,835.60 : x
  2. Step 2: Convert to fraction form
    87,331.60/130,997.40 = 69,835.60/x
  3. Step 3: Cross multiply
    87,331.60x = 130,997.40 × 69,835.60
  4. Step 4: Simplify right side
    87,331.60x = 9,148,282,027.44
  5. Step 5: Solve for x
    x = 9,148,282,027.44/87,331.60
  6. Step 6: Final answer
    x = 104,753.40

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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.