Home / 140,410.14-193,765.59-76,747.74

Finding the Fourth Proportional to 140,410.14, 193,765.59 and 76,747.74

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Solution

The fourth proportional to 140,410.14, 193,765.59 and 76,747.74 is: 105,911.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,410.14 : 193,765.59 = 76,747.74 : x
  2. Step 2: Convert to fraction form
    140,410.14/193,765.59 = 76,747.74/x
  3. Step 3: Cross multiply
    140,410.14x = 193,765.59 × 76,747.74
  4. Step 4: Simplify right side
    140,410.14x = 14,871,071,122.27
  5. Step 5: Solve for x
    x = 14,871,071,122.27/140,410.14
  6. Step 6: Final answer
    x = 105,911.66

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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.