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Finding the Fourth Proportional to 159,919.67, 220,687.70 and 88,298.13

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Solution

The fourth proportional to 159,919.67, 220,687.70 and 88,298.13 is: 121,850.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,919.67 : 220,687.70 = 88,298.13 : x
  2. Step 2: Convert to fraction form
    159,919.67/220,687.70 = 88,298.13/x
  3. Step 3: Cross multiply
    159,919.67x = 220,687.70 × 88,298.13
  4. Step 4: Simplify right side
    159,919.67x = 19,486,310,782.51
  5. Step 5: Solve for x
    x = 19,486,310,782.51/159,919.67
  6. Step 6: Final answer
    x = 121,850.62

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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.