Home / 87,840.93-131,892.63-86,528.73

Finding the Fourth Proportional to 87,840.93, 131,892.63 and 86,528.73

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Solution

The fourth proportional to 87,840.93, 131,892.63 and 86,528.73 is: 129,922.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,840.93 : 131,892.63 = 86,528.73 : x
  2. Step 2: Convert to fraction form
    87,840.93/131,892.63 = 86,528.73/x
  3. Step 3: Cross multiply
    87,840.93x = 131,892.63 × 86,528.73
  4. Step 4: Simplify right side
    87,840.93x = 11,412,501,770.26
  5. Step 5: Solve for x
    x = 11,412,501,770.26/87,840.93
  6. Step 6: Final answer
    x = 129,922.37

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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.