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Finding the Fourth Proportional to 158,797.87, 219,141.45 and 86,201.01

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Solution

The fourth proportional to 158,797.87, 219,141.45 and 86,201.01 is: 118,957.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,797.87 : 219,141.45 = 86,201.01 : x
  2. Step 2: Convert to fraction form
    158,797.87/219,141.45 = 86,201.01/x
  3. Step 3: Cross multiply
    158,797.87x = 219,141.45 × 86,201.01
  4. Step 4: Simplify right side
    158,797.87x = 18,890,214,322.86
  5. Step 5: Solve for x
    x = 18,890,214,322.86/158,797.87
  6. Step 6: Final answer
    x = 118,957.61

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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.