Home / 131,716.42-181,769.08-71,287.06

Finding the Fourth Proportional to 131,716.42, 181,769.08 and 71,287.06

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Solution

The fourth proportional to 131,716.42, 181,769.08 and 71,287.06 is: 98,376.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,716.42 : 181,769.08 = 71,287.06 : x
  2. Step 2: Convert to fraction form
    131,716.42/181,769.08 = 71,287.06/x
  3. Step 3: Cross multiply
    131,716.42x = 181,769.08 × 71,287.06
  4. Step 4: Simplify right side
    131,716.42x = 12,957,783,312.10
  5. Step 5: Solve for x
    x = 12,957,783,312.10/131,716.42
  6. Step 6: Final answer
    x = 98,376.37

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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.