Home / 131,705.84-181,754.05-71,276.49

Finding the Fourth Proportional to 131,705.84, 181,754.05 and 71,276.49

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Solution

The fourth proportional to 131,705.84, 181,754.05 and 71,276.49 is: 98,361.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,705.84 : 181,754.05 = 71,276.49 : x
  2. Step 2: Convert to fraction form
    131,705.84/181,754.05 = 71,276.49/x
  3. Step 3: Cross multiply
    131,705.84x = 181,754.05 × 71,276.49
  4. Step 4: Simplify right side
    131,705.84x = 12,954,790,727.28
  5. Step 5: Solve for x
    x = 12,954,790,727.28/131,705.84
  6. Step 6: Final answer
    x = 98,361.55

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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.