Home / 145,324.92-200,554.33-81,662.57

Finding the Fourth Proportional to 145,324.92, 200,554.33 and 81,662.57

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Solution

The fourth proportional to 145,324.92, 200,554.33 and 81,662.57 is: 112,697.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,324.92 : 200,554.33 = 81,662.57 : x
  2. Step 2: Convert to fraction form
    145,324.92/200,554.33 = 81,662.57/x
  3. Step 3: Cross multiply
    145,324.92x = 200,554.33 × 81,662.57
  4. Step 4: Simplify right side
    145,324.92x = 16,377,781,009.66
  5. Step 5: Solve for x
    x = 16,377,781,009.66/145,324.92
  6. Step 6: Final answer
    x = 112,697.68

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1.5x scale

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.