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Finding the Fourth Proportional to 143,843, 215,387.20 and 101,494.48

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Solution

The fourth proportional to 143,843, 215,387.20 and 101,494.48 is: 151,975.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,843 : 215,387.20 = 101,494.48 : x
  2. Step 2: Convert to fraction form
    143,843/215,387.20 = 101,494.48/x
  3. Step 3: Cross multiply
    143,843x = 215,387.20 × 101,494.48
  4. Step 4: Simplify right side
    143,843x = 21,860,611,862.66
  5. Step 5: Solve for x
    x = 21,860,611,862.66/143,843
  6. Step 6: Final answer
    x = 151,975.50

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1.5x scale

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.