Home / 140,568.31-210,852.47-40,728.57

Finding the Fourth Proportional to 140,568.31, 210,852.47 and 40,728.57

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Solution

The fourth proportional to 140,568.31, 210,852.47 and 40,728.57 is: 61,092.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,568.31 : 210,852.47 = 40,728.57 : x
  2. Step 2: Convert to fraction form
    140,568.31/210,852.47 = 40,728.57/x
  3. Step 3: Cross multiply
    140,568.31x = 210,852.47 × 40,728.57
  4. Step 4: Simplify right side
    140,568.31x = 8,587,718,427.98
  5. Step 5: Solve for x
    x = 8,587,718,427.98/140,568.31
  6. Step 6: Final answer
    x = 61,092.85

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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.