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Finding the Fourth Proportional to 159,653.76, 220,314.27 and 90,734.25

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Solution

The fourth proportional to 159,653.76, 220,314.27 and 90,734.25 is: 125,208.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,653.76 : 220,314.27 = 90,734.25 : x
  2. Step 2: Convert to fraction form
    159,653.76/220,314.27 = 90,734.25/x
  3. Step 3: Cross multiply
    159,653.76x = 220,314.27 × 90,734.25
  4. Step 4: Simplify right side
    159,653.76x = 19,990,050,052.75
  5. Step 5: Solve for x
    x = 19,990,050,052.75/159,653.76
  6. Step 6: Final answer
    x = 125,208.76

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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.