Home / 161,276.78-222,569.56-89,658

Finding the Fourth Proportional to 161,276.78, 222,569.56 and 89,658

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Solution

The fourth proportional to 161,276.78, 222,569.56 and 89,658 is: 123,732.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,276.78 : 222,569.56 = 89,658 : x
  2. Step 2: Convert to fraction form
    161,276.78/222,569.56 = 89,658/x
  3. Step 3: Cross multiply
    161,276.78x = 222,569.56 × 89,658
  4. Step 4: Simplify right side
    161,276.78x = 19,955,141,218.23
  5. Step 5: Solve for x
    x = 19,955,141,218.23/161,276.78
  6. Step 6: Final answer
    x = 123,732.26

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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.