Home / 127,609.90-191,273.82-52,688.74

Finding the Fourth Proportional to 127,609.90, 191,273.82 and 52,688.74

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Solution

The fourth proportional to 127,609.90, 191,273.82 and 52,688.74 is: 78,974.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,609.90 : 191,273.82 = 52,688.74 : x
  2. Step 2: Convert to fraction form
    127,609.90/191,273.82 = 52,688.74/x
  3. Step 3: Cross multiply
    127,609.90x = 191,273.82 × 52,688.74
  4. Step 4: Simplify right side
    127,609.90x = 10,077,976,570.79
  5. Step 5: Solve for x
    x = 10,077,976,570.79/127,609.90
  6. Step 6: Final answer
    x = 78,974.88

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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.