Home / 131,674.08-181,708.94-71,243.40

Finding the Fourth Proportional to 131,674.08, 181,708.94 and 71,243.40

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Solution

The fourth proportional to 131,674.08, 181,708.94 and 71,243.40 is: 98,315.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,674.08 : 181,708.94 = 71,243.40 : x
  2. Step 2: Convert to fraction form
    131,674.08/181,708.94 = 71,243.40/x
  3. Step 3: Cross multiply
    131,674.08x = 181,708.94 × 71,243.40
  4. Step 4: Simplify right side
    131,674.08x = 12,945,562,696.00
  5. Step 5: Solve for x
    x = 12,945,562,696.00/131,674.08
  6. Step 6: Final answer
    x = 98,315.19

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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.