Home / 137,136.30-188,827.36-120,044.89

Finding the Fourth Proportional to 137,136.30, 188,827.36 and 120,044.89

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Solution

The fourth proportional to 137,136.30, 188,827.36 and 120,044.89 is: 165,293.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,136.30 : 188,827.36 = 120,044.89 : x
  2. Step 2: Convert to fraction form
    137,136.30/188,827.36 = 120,044.89/x
  3. Step 3: Cross multiply
    137,136.30x = 188,827.36 × 120,044.89
  4. Step 4: Simplify right side
    137,136.30x = 22,667,759,660.19
  5. Step 5: Solve for x
    x = 22,667,759,660.19/137,136.30
  6. Step 6: Final answer
    x = 165,293.65

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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.