Home / 140,306.41-193,628.06-76,644.64

Finding the Fourth Proportional to 140,306.41, 193,628.06 and 76,644.64

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Solution

The fourth proportional to 140,306.41, 193,628.06 and 76,644.64 is: 105,772.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,306.41 : 193,628.06 = 76,644.64 : x
  2. Step 2: Convert to fraction form
    140,306.41/193,628.06 = 76,644.64/x
  3. Step 3: Cross multiply
    140,306.41x = 193,628.06 × 76,644.64
  4. Step 4: Simplify right side
    140,306.41x = 14,840,552,952.60
  5. Step 5: Solve for x
    x = 14,840,552,952.60/140,306.41
  6. Step 6: Final answer
    x = 105,772.45

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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.