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Finding the Fourth Proportional to 101,138.52, 151,574.94 and 87,927.96

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Solution

The fourth proportional to 101,138.52, 151,574.94 and 87,927.96 is: 131,776.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,138.52 : 151,574.94 = 87,927.96 : x
  2. Step 2: Convert to fraction form
    101,138.52/151,574.94 = 87,927.96/x
  3. Step 3: Cross multiply
    101,138.52x = 151,574.94 × 87,927.96
  4. Step 4: Simplify right side
    101,138.52x = 13,327,675,261.32
  5. Step 5: Solve for x
    x = 13,327,675,261.32/101,138.52
  6. Step 6: Final answer
    x = 131,776.45

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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.