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Finding the Fourth Proportional to 191,080.97, 286,662.70 and 57,971.95

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Solution

The fourth proportional to 191,080.97, 286,662.70 and 57,971.95 is: 86,970.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,080.97 : 286,662.70 = 57,971.95 : x
  2. Step 2: Convert to fraction form
    191,080.97/286,662.70 = 57,971.95/x
  3. Step 3: Cross multiply
    191,080.97x = 286,662.70 × 57,971.95
  4. Step 4: Simplify right side
    191,080.97x = 16,618,396,353.46
  5. Step 5: Solve for x
    x = 16,618,396,353.46/191,080.97
  6. Step 6: Final answer
    x = 86,970.44

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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.