Home / 131,782.45-181,859.01-71,351.84

Finding the Fourth Proportional to 131,782.45, 181,859.01 and 71,351.84

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Solution

The fourth proportional to 131,782.45, 181,859.01 and 71,351.84 is: 98,465.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,782.45 : 181,859.01 = 71,351.84 : x
  2. Step 2: Convert to fraction form
    131,782.45/181,859.01 = 71,351.84/x
  3. Step 3: Cross multiply
    131,782.45x = 181,859.01 × 71,351.84
  4. Step 4: Simplify right side
    131,782.45x = 12,975,974,659.68
  5. Step 5: Solve for x
    x = 12,975,974,659.68/131,782.45
  6. Step 6: Final answer
    x = 98,465.12

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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.