Home / 96,869.64-145,216.44-86,372.04

Finding the Fourth Proportional to 96,869.64, 145,216.44 and 86,372.04

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Solution

The fourth proportional to 96,869.64, 145,216.44 and 86,372.04 is: 129,479.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,869.64 : 145,216.44 = 86,372.04 : x
  2. Step 2: Convert to fraction form
    96,869.64/145,216.44 = 86,372.04/x
  3. Step 3: Cross multiply
    96,869.64x = 145,216.44 × 86,372.04
  4. Step 4: Simplify right side
    96,869.64x = 12,542,640,164.34
  5. Step 5: Solve for x
    x = 12,542,640,164.34/96,869.64
  6. Step 6: Final answer
    x = 129,479.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.