Home / 132,781.28-183,235.79-72,352.44

Finding the Fourth Proportional to 132,781.28, 183,235.79 and 72,352.44

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Solution

The fourth proportional to 132,781.28, 183,235.79 and 72,352.44 is: 99,845.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,781.28 : 183,235.79 = 72,352.44 : x
  2. Step 2: Convert to fraction form
    132,781.28/183,235.79 = 72,352.44/x
  3. Step 3: Cross multiply
    132,781.28x = 183,235.79 × 72,352.44
  4. Step 4: Simplify right side
    132,781.28x = 13,257,556,411.39
  5. Step 5: Solve for x
    x = 13,257,556,411.39/132,781.28
  6. Step 6: Final answer
    x = 99,845.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.