Home / 161,315.31-222,617.69-88,721.38

Finding the Fourth Proportional to 161,315.31, 222,617.69 and 88,721.38

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Solution

The fourth proportional to 161,315.31, 222,617.69 and 88,721.38 is: 122,436.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,315.31 : 222,617.69 = 88,721.38 : x
  2. Step 2: Convert to fraction form
    161,315.31/222,617.69 = 88,721.38/x
  3. Step 3: Cross multiply
    161,315.31x = 222,617.69 × 88,721.38
  4. Step 4: Simplify right side
    161,315.31x = 19,750,948,669.21
  5. Step 5: Solve for x
    x = 19,750,948,669.21/161,315.31
  6. Step 6: Final answer
    x = 122,436.91

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1.5x scale

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.