Home / 86,997.47-131,088.94-71,548.65

Finding the Fourth Proportional to 86,997.47, 131,088.94 and 71,548.65

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Solution

The fourth proportional to 86,997.47, 131,088.94 and 71,548.65 is: 107,810.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,997.47 : 131,088.94 = 71,548.65 : x
  2. Step 2: Convert to fraction form
    86,997.47/131,088.94 = 71,548.65/x
  3. Step 3: Cross multiply
    86,997.47x = 131,088.94 × 71,548.65
  4. Step 4: Simplify right side
    86,997.47x = 9,379,236,508.06
  5. Step 5: Solve for x
    x = 9,379,236,508.06/86,997.47
  6. Step 6: Final answer
    x = 107,810.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.