Home / 140,701.72-194,168.28-77,040.76

Finding the Fourth Proportional to 140,701.72, 194,168.28 and 77,040.76

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Solution

The fourth proportional to 140,701.72, 194,168.28 and 77,040.76 is: 106,316.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,701.72 : 194,168.28 = 77,040.76 : x
  2. Step 2: Convert to fraction form
    140,701.72/194,168.28 = 77,040.76/x
  3. Step 3: Cross multiply
    140,701.72x = 194,168.28 × 77,040.76
  4. Step 4: Simplify right side
    140,701.72x = 14,958,871,859.09
  5. Step 5: Solve for x
    x = 14,958,871,859.09/140,701.72
  6. Step 6: Final answer
    x = 106,316.20

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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.