Home / 212,596.50-318,933.96-87,947.22

Finding the Fourth Proportional to 212,596.50, 318,933.96 and 87,947.22

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Solution

The fourth proportional to 212,596.50, 318,933.96 and 87,947.22 is: 131,937.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,596.50 : 318,933.96 = 87,947.22 : x
  2. Step 2: Convert to fraction form
    212,596.50/318,933.96 = 87,947.22/x
  3. Step 3: Cross multiply
    212,596.50x = 318,933.96 × 87,947.22
  4. Step 4: Simplify right side
    212,596.50x = 28,049,355,145.59
  5. Step 5: Solve for x
    x = 28,049,355,145.59/212,596.50
  6. Step 6: Final answer
    x = 131,937.05

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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.