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Finding the Fourth Proportional to 133,979.31, 184,910.31 and 76,630.70

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Solution

The fourth proportional to 133,979.31, 184,910.31 and 76,630.70 is: 105,761.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,979.31 : 184,910.31 = 76,630.70 : x
  2. Step 2: Convert to fraction form
    133,979.31/184,910.31 = 76,630.70/x
  3. Step 3: Cross multiply
    133,979.31x = 184,910.31 × 76,630.70
  4. Step 4: Simplify right side
    133,979.31x = 14,169,806,954.79
  5. Step 5: Solve for x
    x = 14,169,806,954.79/133,979.31
  6. Step 6: Final answer
    x = 105,761.16

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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.