Home / 131,579.84-181,580.04-71,150.33

Finding the Fourth Proportional to 131,579.84, 181,580.04 and 71,150.33

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Solution

The fourth proportional to 131,579.84, 181,580.04 and 71,150.33 is: 98,187.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,579.84 : 181,580.04 = 71,150.33 : x
  2. Step 2: Convert to fraction form
    131,579.84/181,580.04 = 71,150.33/x
  3. Step 3: Cross multiply
    131,579.84x = 181,580.04 × 71,150.33
  4. Step 4: Simplify right side
    131,579.84x = 12,919,479,767.41
  5. Step 5: Solve for x
    x = 12,919,479,767.41/131,579.84
  6. Step 6: Final answer
    x = 98,187.38

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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.