Home / 140,076.46-193,305.10-76,413.80

Finding the Fourth Proportional to 140,076.46, 193,305.10 and 76,413.80

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Solution

The fourth proportional to 140,076.46, 193,305.10 and 76,413.80 is: 105,450.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,076.46 : 193,305.10 = 76,413.80 : x
  2. Step 2: Convert to fraction form
    140,076.46/193,305.10 = 76,413.80/x
  3. Step 3: Cross multiply
    140,076.46x = 193,305.10 × 76,413.80
  4. Step 4: Simplify right side
    140,076.46x = 14,771,176,598.54
  5. Step 5: Solve for x
    x = 14,771,176,598.54/140,076.46
  6. Step 6: Final answer
    x = 105,450.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.