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Finding the Fourth Proportional to 103,705.66, 155,550.97 and 40,513.92

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Solution

The fourth proportional to 103,705.66, 155,550.97 and 40,513.92 is: 60,767.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,705.66 : 155,550.97 = 40,513.92 : x
  2. Step 2: Convert to fraction form
    103,705.66/155,550.97 = 40,513.92/x
  3. Step 3: Cross multiply
    103,705.66x = 155,550.97 × 40,513.92
  4. Step 4: Simplify right side
    103,705.66x = 6,301,979,554.50
  5. Step 5: Solve for x
    x = 6,301,979,554.50/103,705.66
  6. Step 6: Final answer
    x = 60,767.94

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1.5x scale

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.