Home / 156,323.85-215,727.68-84,703.86

Finding the Fourth Proportional to 156,323.85, 215,727.68 and 84,703.86

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Solution

The fourth proportional to 156,323.85, 215,727.68 and 84,703.86 is: 116,891.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,323.85 : 215,727.68 = 84,703.86 : x
  2. Step 2: Convert to fraction form
    156,323.85/215,727.68 = 84,703.86/x
  3. Step 3: Cross multiply
    156,323.85x = 215,727.68 × 84,703.86
  4. Step 4: Simplify right side
    156,323.85x = 18,272,966,781.33
  5. Step 5: Solve for x
    x = 18,272,966,781.33/156,323.85
  6. Step 6: Final answer
    x = 116,891.74

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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.