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Finding the Fourth Proportional to 185,418.92, 255,875.64 and 100,534.16

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Solution

The fourth proportional to 185,418.92, 255,875.64 and 100,534.16 is: 138,735.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,418.92 : 255,875.64 = 100,534.16 : x
  2. Step 2: Convert to fraction form
    185,418.92/255,875.64 = 100,534.16/x
  3. Step 3: Cross multiply
    185,418.92x = 255,875.64 × 100,534.16
  4. Step 4: Simplify right side
    185,418.92x = 25,724,242,531.86
  5. Step 5: Solve for x
    x = 25,724,242,531.86/185,418.92
  6. Step 6: Final answer
    x = 138,735.80

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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.