Home / 136,512.36-188,402.31-76,088.52

Finding the Fourth Proportional to 136,512.36, 188,402.31 and 76,088.52

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Solution

The fourth proportional to 136,512.36, 188,402.31 and 76,088.52 is: 105,010.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,512.36 : 188,402.31 = 76,088.52 : x
  2. Step 2: Convert to fraction form
    136,512.36/188,402.31 = 76,088.52/x
  3. Step 3: Cross multiply
    136,512.36x = 188,402.31 × 76,088.52
  4. Step 4: Simplify right side
    136,512.36x = 14,335,252,932.48
  5. Step 5: Solve for x
    x = 14,335,252,932.48/136,512.36
  6. Step 6: Final answer
    x = 105,010.66

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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.