Home / 210,500.24-315,799.98-68,334.56

Finding the Fourth Proportional to 210,500.24, 315,799.98 and 68,334.56

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Solution

The fourth proportional to 210,500.24, 315,799.98 and 68,334.56 is: 102,517.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,500.24 : 315,799.98 = 68,334.56 : x
  2. Step 2: Convert to fraction form
    210,500.24/315,799.98 = 68,334.56/x
  3. Step 3: Cross multiply
    210,500.24x = 315,799.98 × 68,334.56
  4. Step 4: Simplify right side
    210,500.24x = 21,580,052,681.31
  5. Step 5: Solve for x
    x = 21,580,052,681.31/210,500.24
  6. Step 6: Final answer
    x = 102,517.95

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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.