Home / 127,761.40-191,679.09-52,867.72

Finding the Fourth Proportional to 127,761.40, 191,679.09 and 52,867.72

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Solution

The fourth proportional to 127,761.40, 191,679.09 and 52,867.72 is: 79,316.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,761.40 : 191,679.09 = 52,867.72 : x
  2. Step 2: Convert to fraction form
    127,761.40/191,679.09 = 52,867.72/x
  3. Step 3: Cross multiply
    127,761.40x = 191,679.09 × 52,867.72
  4. Step 4: Simplify right side
    127,761.40x = 10,133,636,459.97
  5. Step 5: Solve for x
    x = 10,133,636,459.97/127,761.40
  6. Step 6: Final answer
    x = 79,316.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.