Home / 119,611.52-165,056-71,836.48

Finding the Fourth Proportional to 119,611.52, 165,056 and 71,836.48

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Solution

The fourth proportional to 119,611.52, 165,056 and 71,836.48 is: 99,129.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,611.52 : 165,056 = 71,836.48 : x
  2. Step 2: Convert to fraction form
    119,611.52/165,056 = 71,836.48/x
  3. Step 3: Cross multiply
    119,611.52x = 165,056 × 71,836.48
  4. Step 4: Simplify right side
    119,611.52x = 11,857,042,042.88
  5. Step 5: Solve for x
    x = 11,857,042,042.88/119,611.52
  6. Step 6: Final answer
    x = 99,129.60

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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.