Home / 140,289.31-210,517.80-51,551.78

Finding the Fourth Proportional to 140,289.31, 210,517.80 and 51,551.78

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Solution

The fourth proportional to 140,289.31, 210,517.80 and 51,551.78 is: 77,358.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,289.31 : 210,517.80 = 51,551.78 : x
  2. Step 2: Convert to fraction form
    140,289.31/210,517.80 = 51,551.78/x
  3. Step 3: Cross multiply
    140,289.31x = 210,517.80 × 51,551.78
  4. Step 4: Simplify right side
    140,289.31x = 10,852,567,440.56
  5. Step 5: Solve for x
    x = 10,852,567,440.56/140,289.31
  6. Step 6: Final answer
    x = 77,358.48

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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.