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Finding the Fourth Proportional to 106,504.68, 159,811.08 and 70,990.32

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Solution

The fourth proportional to 106,504.68, 159,811.08 and 70,990.32 is: 106,521.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,504.68 : 159,811.08 = 70,990.32 : x
  2. Step 2: Convert to fraction form
    106,504.68/159,811.08 = 70,990.32/x
  3. Step 3: Cross multiply
    106,504.68x = 159,811.08 × 70,990.32
  4. Step 4: Simplify right side
    106,504.68x = 11,345,039,708.75
  5. Step 5: Solve for x
    x = 11,345,039,708.75/106,504.68
  6. Step 6: Final answer
    x = 106,521.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.