Home / 161,278.74-241,842.51-86,385.06

Finding the Fourth Proportional to 161,278.74, 241,842.51 and 86,385.06

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Solution

The fourth proportional to 161,278.74, 241,842.51 and 86,385.06 is: 129,537.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,278.74 : 241,842.51 = 86,385.06 : x
  2. Step 2: Convert to fraction form
    161,278.74/241,842.51 = 86,385.06/x
  3. Step 3: Cross multiply
    161,278.74x = 241,842.51 × 86,385.06
  4. Step 4: Simplify right side
    161,278.74x = 20,891,579,736.90
  5. Step 5: Solve for x
    x = 20,891,579,736.90/161,278.74
  6. Step 6: Final answer
    x = 129,537.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.