Home / 161,539.10-222,921.57-89,919.02

Finding the Fourth Proportional to 161,539.10, 222,921.57 and 89,919.02

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Solution

The fourth proportional to 161,539.10, 222,921.57 and 89,919.02 is: 124,086.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,539.10 : 222,921.57 = 89,919.02 : x
  2. Step 2: Convert to fraction form
    161,539.10/222,921.57 = 89,919.02/x
  3. Step 3: Cross multiply
    161,539.10x = 222,921.57 × 89,919.02
  4. Step 4: Simplify right side
    161,539.10x = 20,044,889,111.26
  5. Step 5: Solve for x
    x = 20,044,889,111.26/161,539.10
  6. Step 6: Final answer
    x = 124,086.92

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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.