Home / 140,771.69-194,265.03-77,109.74

Finding the Fourth Proportional to 140,771.69, 194,265.03 and 77,109.74

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Solution

The fourth proportional to 140,771.69, 194,265.03 and 77,109.74 is: 106,411.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,771.69 : 194,265.03 = 77,109.74 : x
  2. Step 2: Convert to fraction form
    140,771.69/194,265.03 = 77,109.74/x
  3. Step 3: Cross multiply
    140,771.69x = 194,265.03 × 77,109.74
  4. Step 4: Simplify right side
    140,771.69x = 14,979,725,954.39
  5. Step 5: Solve for x
    x = 14,979,725,954.39/140,771.69
  6. Step 6: Final answer
    x = 106,411.49

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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.