Home / 131,744.80-181,808.27-71,315.43

Finding the Fourth Proportional to 131,744.80, 181,808.27 and 71,315.43

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Solution

The fourth proportional to 131,744.80, 181,808.27 and 71,315.43 is: 98,415.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,744.80 : 181,808.27 = 71,315.43 : x
  2. Step 2: Convert to fraction form
    131,744.80/181,808.27 = 71,315.43/x
  3. Step 3: Cross multiply
    131,744.80x = 181,808.27 × 71,315.43
  4. Step 4: Simplify right side
    131,744.80x = 12,965,734,952.61
  5. Step 5: Solve for x
    x = 12,965,734,952.61/131,744.80
  6. Step 6: Final answer
    x = 98,415.53

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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.