Home / 156,243.68-215,615.76-84,623.52

Finding the Fourth Proportional to 156,243.68, 215,615.76 and 84,623.52

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Solution

The fourth proportional to 156,243.68, 215,615.76 and 84,623.52 is: 116,780.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,243.68 : 215,615.76 = 84,623.52 : x
  2. Step 2: Convert to fraction form
    156,243.68/215,615.76 = 84,623.52/x
  3. Step 3: Cross multiply
    156,243.68x = 215,615.76 × 84,623.52
  4. Step 4: Simplify right side
    156,243.68x = 18,246,164,578.68
  5. Step 5: Solve for x
    x = 18,246,164,578.68/156,243.68
  6. Step 6: Final answer
    x = 116,780.18

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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.