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Finding the Fourth Proportional to 103,486.57, 155,921.38 and 93,502.92

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Solution

The fourth proportional to 103,486.57, 155,921.38 and 93,502.92 is: 140,879.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,486.57 : 155,921.38 = 93,502.92 : x
  2. Step 2: Convert to fraction form
    103,486.57/155,921.38 = 93,502.92/x
  3. Step 3: Cross multiply
    103,486.57x = 155,921.38 × 93,502.92
  4. Step 4: Simplify right side
    103,486.57x = 14,579,104,320.43
  5. Step 5: Solve for x
    x = 14,579,104,320.43/103,486.57
  6. Step 6: Final answer
    x = 140,879.19

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.