Home / 140,825.81-194,344.18-77,167.71

Finding the Fourth Proportional to 140,825.81, 194,344.18 and 77,167.71

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Solution

The fourth proportional to 140,825.81, 194,344.18 and 77,167.71 is: 106,493.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,825.81 : 194,344.18 = 77,167.71 : x
  2. Step 2: Convert to fraction form
    140,825.81/194,344.18 = 77,167.71/x
  3. Step 3: Cross multiply
    140,825.81x = 194,344.18 × 77,167.71
  4. Step 4: Simplify right side
    140,825.81x = 14,997,095,129.51
  5. Step 5: Solve for x
    x = 14,997,095,129.51/140,825.81
  6. Step 6: Final answer
    x = 106,493.94

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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.