Home / 156,719.75-216,273.26-89,651.75

Finding the Fourth Proportional to 156,719.75, 216,273.26 and 89,651.75

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Solution

The fourth proportional to 156,719.75, 216,273.26 and 89,651.75 is: 123,719.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,719.75 : 216,273.26 = 89,651.75 : x
  2. Step 2: Convert to fraction form
    156,719.75/216,273.26 = 89,651.75/x
  3. Step 3: Cross multiply
    156,719.75x = 216,273.26 × 89,651.75
  4. Step 4: Simplify right side
    156,719.75x = 19,389,276,237.21
  5. Step 5: Solve for x
    x = 19,389,276,237.21/156,719.75
  6. Step 6: Final answer
    x = 123,719.42

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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.