Home / 131,767.31-181,837.62-71,336.39

Finding the Fourth Proportional to 131,767.31, 181,837.62 and 71,336.39

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Solution

The fourth proportional to 131,767.31, 181,837.62 and 71,336.39 is: 98,443.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,767.31 : 181,837.62 = 71,336.39 : x
  2. Step 2: Convert to fraction form
    131,767.31/181,837.62 = 71,336.39/x
  3. Step 3: Cross multiply
    131,767.31x = 181,837.62 × 71,336.39
  4. Step 4: Simplify right side
    131,767.31x = 12,971,638,467.80
  5. Step 5: Solve for x
    x = 12,971,638,467.80/131,767.31
  6. Step 6: Final answer
    x = 98,443.53

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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.