Home / 140,143.18-210,089.75-51,375.95

Finding the Fourth Proportional to 140,143.18, 210,089.75 and 51,375.95

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Solution

The fourth proportional to 140,143.18, 210,089.75 and 51,375.95 is: 77,018.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,143.18 : 210,089.75 = 51,375.95 : x
  2. Step 2: Convert to fraction form
    140,143.18/210,089.75 = 51,375.95/x
  3. Step 3: Cross multiply
    140,143.18x = 210,089.75 × 51,375.95
  4. Step 4: Simplify right side
    140,143.18x = 10,793,560,759.86
  5. Step 5: Solve for x
    x = 10,793,560,759.86/140,143.18
  6. Step 6: Final answer
    x = 77,018.10

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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.