Home / 127,610.90-191,275.32-52,689.74

Finding the Fourth Proportional to 127,610.90, 191,275.32 and 52,689.74

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Solution

The fourth proportional to 127,610.90, 191,275.32 and 52,689.74 is: 78,976.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,610.90 : 191,275.32 = 52,689.74 : x
  2. Step 2: Convert to fraction form
    127,610.90/191,275.32 = 52,689.74/x
  3. Step 3: Cross multiply
    127,610.90x = 191,275.32 × 52,689.74
  4. Step 4: Simplify right side
    127,610.90x = 10,078,246,879.22
  5. Step 5: Solve for x
    x = 10,078,246,879.22/127,610.90
  6. Step 6: Final answer
    x = 78,976.38

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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.