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Finding the Fourth Proportional to 101,813.93, 152,659.53 and 45,643.88

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Solution

The fourth proportional to 101,813.93, 152,659.53 and 45,643.88 is: 68,438.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,813.93 : 152,659.53 = 45,643.88 : x
  2. Step 2: Convert to fraction form
    101,813.93/152,659.53 = 45,643.88/x
  3. Step 3: Cross multiply
    101,813.93x = 152,659.53 × 45,643.88
  4. Step 4: Simplify right side
    101,813.93x = 6,967,972,504.88
  5. Step 5: Solve for x
    x = 6,967,972,504.88/101,813.93
  6. Step 6: Final answer
    x = 68,438.31

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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.