Home / 140,639.55-210,932.43-42,143.55

Finding the Fourth Proportional to 140,639.55, 210,932.43 and 42,143.55

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Solution

The fourth proportional to 140,639.55, 210,932.43 and 42,143.55 is: 63,207.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,639.55 : 210,932.43 = 42,143.55 : x
  2. Step 2: Convert to fraction form
    140,639.55/210,932.43 = 42,143.55/x
  3. Step 3: Cross multiply
    140,639.55x = 210,932.43 × 42,143.55
  4. Step 4: Simplify right side
    140,639.55x = 8,889,441,410.33
  5. Step 5: Solve for x
    x = 8,889,441,410.33/140,639.55
  6. Step 6: Final answer
    x = 63,207.27

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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.