Home / 145,164.40-217,772.08-66,286.60

Finding the Fourth Proportional to 145,164.40, 217,772.08 and 66,286.60

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Solution

The fourth proportional to 145,164.40, 217,772.08 and 66,286.60 is: 99,441.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,164.40 : 217,772.08 = 66,286.60 : x
  2. Step 2: Convert to fraction form
    145,164.40/217,772.08 = 66,286.60/x
  3. Step 3: Cross multiply
    145,164.40x = 217,772.08 × 66,286.60
  4. Step 4: Simplify right side
    145,164.40x = 14,435,370,758.13
  5. Step 5: Solve for x
    x = 14,435,370,758.13/145,164.40
  6. Step 6: Final answer
    x = 99,441.53

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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.