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Finding the Fourth Proportional to 156,858.75, 216,494.24 and 89,790.75

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Solution

The fourth proportional to 156,858.75, 216,494.24 and 89,790.75 is: 123,927.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,858.75 : 216,494.24 = 89,790.75 : x
  2. Step 2: Convert to fraction form
    156,858.75/216,494.24 = 89,790.75/x
  3. Step 3: Cross multiply
    156,858.75x = 216,494.24 × 89,790.75
  4. Step 4: Simplify right side
    156,858.75x = 19,439,180,180.28
  5. Step 5: Solve for x
    x = 19,439,180,180.28/156,858.75
  6. Step 6: Final answer
    x = 123,927.93

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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.