Home / 165,020.31-247,490.82-76,188.51

Finding the Fourth Proportional to 165,020.31, 247,490.82 and 76,188.51

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Solution

The fourth proportional to 165,020.31, 247,490.82 and 76,188.51 is: 114,264.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,020.31 : 247,490.82 = 76,188.51 : x
  2. Step 2: Convert to fraction form
    165,020.31/247,490.82 = 76,188.51/x
  3. Step 3: Cross multiply
    165,020.31x = 247,490.82 × 76,188.51
  4. Step 4: Simplify right side
    165,020.31x = 18,855,956,814.48
  5. Step 5: Solve for x
    x = 18,855,956,814.48/165,020.31
  6. Step 6: Final answer
    x = 114,264.46

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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.