Home / 131,586.94-181,589.61-71,157.16

Finding the Fourth Proportional to 131,586.94, 181,589.61 and 71,157.16

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Solution

The fourth proportional to 131,586.94, 181,589.61 and 71,157.16 is: 98,196.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,586.94 : 181,589.61 = 71,157.16 : x
  2. Step 2: Convert to fraction form
    131,586.94/181,589.61 = 71,157.16/x
  3. Step 3: Cross multiply
    131,586.94x = 181,589.61 × 71,157.16
  4. Step 4: Simplify right side
    131,586.94x = 12,921,400,933.11
  5. Step 5: Solve for x
    x = 12,921,400,933.11/131,586.94
  6. Step 6: Final answer
    x = 98,196.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.