Home / 140,040.66-210,154.40-72,634.82

Finding the Fourth Proportional to 140,040.66, 210,154.40 and 72,634.82

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Solution

The fourth proportional to 140,040.66, 210,154.40 and 72,634.82 is: 109,000.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,040.66 : 210,154.40 = 72,634.82 : x
  2. Step 2: Convert to fraction form
    140,040.66/210,154.40 = 72,634.82/x
  3. Step 3: Cross multiply
    140,040.66x = 210,154.40 × 72,634.82
  4. Step 4: Simplify right side
    140,040.66x = 15,264,527,016.21
  5. Step 5: Solve for x
    x = 15,264,527,016.21/140,040.66
  6. Step 6: Final answer
    x = 109,000.68

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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.