Home / 115,390.41-173,162.93-40,510.78

Finding the Fourth Proportional to 115,390.41, 173,162.93 and 40,510.78

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Solution

The fourth proportional to 115,390.41, 173,162.93 and 40,510.78 is: 60,793.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,390.41 : 173,162.93 = 40,510.78 : x
  2. Step 2: Convert to fraction form
    115,390.41/173,162.93 = 40,510.78/x
  3. Step 3: Cross multiply
    115,390.41x = 173,162.93 × 40,510.78
  4. Step 4: Simplify right side
    115,390.41x = 7,014,964,725.92
  5. Step 5: Solve for x
    x = 7,014,964,725.92/115,390.41
  6. Step 6: Final answer
    x = 60,793.31

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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.