Home / 131,796.35-181,878.68-71,367.16

Finding the Fourth Proportional to 131,796.35, 181,878.68 and 71,367.16

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Solution

The fourth proportional to 131,796.35, 181,878.68 and 71,367.16 is: 98,486.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,796.35 : 181,878.68 = 71,367.16 : x
  2. Step 2: Convert to fraction form
    131,796.35/181,878.68 = 71,367.16/x
  3. Step 3: Cross multiply
    131,796.35x = 181,878.68 × 71,367.16
  4. Step 4: Simplify right side
    131,796.35x = 12,980,164,920.89
  5. Step 5: Solve for x
    x = 12,980,164,920.89/131,796.35
  6. Step 6: Final answer
    x = 98,486.53

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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.