Home / 156,281.16-215,668.26-84,661.77

Finding the Fourth Proportional to 156,281.16, 215,668.26 and 84,661.77

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Solution

The fourth proportional to 156,281.16, 215,668.26 and 84,661.77 is: 116,833.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,281.16 : 215,668.26 = 84,661.77 : x
  2. Step 2: Convert to fraction form
    156,281.16/215,668.26 = 84,661.77/x
  3. Step 3: Cross multiply
    156,281.16x = 215,668.26 × 84,661.77
  4. Step 4: Simplify right side
    156,281.16x = 18,258,856,624.42
  5. Step 5: Solve for x
    x = 18,258,856,624.42/156,281.16
  6. Step 6: Final answer
    x = 116,833.38

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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.