Home / 145,590.92-200,914.82-81,929.78

Finding the Fourth Proportional to 145,590.92, 200,914.82 and 81,929.78

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Solution

The fourth proportional to 145,590.92, 200,914.82 and 81,929.78 is: 113,062.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,590.92 : 200,914.82 = 81,929.78 : x
  2. Step 2: Convert to fraction form
    145,590.92/200,914.82 = 81,929.78/x
  3. Step 3: Cross multiply
    145,590.92x = 200,914.82 × 81,929.78
  4. Step 4: Simplify right side
    145,590.92x = 16,460,907,001.34
  5. Step 5: Solve for x
    x = 16,460,907,001.34/145,590.92
  6. Step 6: Final answer
    x = 113,062.73

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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.