Home / 156,109.26-215,429.22-84,487.80

Finding the Fourth Proportional to 156,109.26, 215,429.22 and 84,487.80

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Solution

The fourth proportional to 156,109.26, 215,429.22 and 84,487.80 is: 116,592.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,109.26 : 215,429.22 = 84,487.80 : x
  2. Step 2: Convert to fraction form
    156,109.26/215,429.22 = 84,487.80/x
  3. Step 3: Cross multiply
    156,109.26x = 215,429.22 × 84,487.80
  4. Step 4: Simplify right side
    156,109.26x = 18,201,140,853.52
  5. Step 5: Solve for x
    x = 18,201,140,853.52/156,109.26
  6. Step 6: Final answer
    x = 116,592.32

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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.