Home / 212,005.15-318,002.73-52,080.83

Finding the Fourth Proportional to 212,005.15, 318,002.73 and 52,080.83

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Solution

The fourth proportional to 212,005.15, 318,002.73 and 52,080.83 is: 78,120.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,005.15 : 318,002.73 = 52,080.83 : x
  2. Step 2: Convert to fraction form
    212,005.15/318,002.73 = 52,080.83/x
  3. Step 3: Cross multiply
    212,005.15x = 318,002.73 × 52,080.83
  4. Step 4: Simplify right side
    212,005.15x = 16,561,847,110.98
  5. Step 5: Solve for x
    x = 16,561,847,110.98/212,005.15
  6. Step 6: Final answer
    x = 78,120.02

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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.