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Finding the Fourth Proportional to 70,169.00, 105,260.51 and 20,250.32

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Solution

The fourth proportional to 70,169.00, 105,260.51 and 20,250.32 is: 30,377.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,169.00 : 105,260.51 = 20,250.32 : x
  2. Step 2: Convert to fraction form
    70,169.00/105,260.51 = 20,250.32/x
  3. Step 3: Cross multiply
    70,169.00x = 105,260.51 × 20,250.32
  4. Step 4: Simplify right side
    70,169.00x = 2,131,558,535.19
  5. Step 5: Solve for x
    x = 2,131,558,535.19/70,169.00
  6. Step 6: Final answer
    x = 30,377.50

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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.