Home / 212,799.42-318,983.70-137,967.12

Finding the Fourth Proportional to 212,799.42, 318,983.70 and 137,967.12

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Solution

The fourth proportional to 212,799.42, 318,983.70 and 137,967.12 is: 206,811.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,799.42 : 318,983.70 = 137,967.12 : x
  2. Step 2: Convert to fraction form
    212,799.42/318,983.70 = 137,967.12/x
  3. Step 3: Cross multiply
    212,799.42x = 318,983.70 × 137,967.12
  4. Step 4: Simplify right side
    212,799.42x = 44,009,262,415.94
  5. Step 5: Solve for x
    x = 44,009,262,415.94/212,799.42
  6. Step 6: Final answer
    x = 206,811.01

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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.