Home / 159,146.40-219,611.34-91,163.64

Finding the Fourth Proportional to 159,146.40, 219,611.34 and 91,163.64

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Solution

The fourth proportional to 159,146.40, 219,611.34 and 91,163.64 is: 125,799.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,146.40 : 219,611.34 = 91,163.64 : x
  2. Step 2: Convert to fraction form
    159,146.40/219,611.34 = 91,163.64/x
  3. Step 3: Cross multiply
    159,146.40x = 219,611.34 × 91,163.64
  4. Step 4: Simplify right side
    159,146.40x = 20,020,569,139.68
  5. Step 5: Solve for x
    x = 20,020,569,139.68/159,146.40
  6. Step 6: Final answer
    x = 125,799.70

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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.