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Finding the Fourth Proportional to 191,558.76, 287,040.12 and 73,165.48

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Solution

The fourth proportional to 191,558.76, 287,040.12 and 73,165.48 is: 109,634.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,558.76 : 287,040.12 = 73,165.48 : x
  2. Step 2: Convert to fraction form
    191,558.76/287,040.12 = 73,165.48/x
  3. Step 3: Cross multiply
    191,558.76x = 287,040.12 × 73,165.48
  4. Step 4: Simplify right side
    191,558.76x = 21,001,428,159.06
  5. Step 5: Solve for x
    x = 21,001,428,159.06/191,558.76
  6. Step 6: Final answer
    x = 109,634.39

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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.