Home / 156,668.55-216,179.78-89,587.59

Finding the Fourth Proportional to 156,668.55, 216,179.78 and 89,587.59

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Solution

The fourth proportional to 156,668.55, 216,179.78 and 89,587.59 is: 123,617.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,668.55 : 216,179.78 = 89,587.59 : x
  2. Step 2: Convert to fraction form
    156,668.55/216,179.78 = 89,587.59/x
  3. Step 3: Cross multiply
    156,668.55x = 216,179.78 × 89,587.59
  4. Step 4: Simplify right side
    156,668.55x = 19,367,025,496.93
  5. Step 5: Solve for x
    x = 19,367,025,496.93/156,668.55
  6. Step 6: Final answer
    x = 123,617.83

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1.5x scale

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.