Home / 96,669.60-145,004.40-67,178.40

Finding the Fourth Proportional to 96,669.60, 145,004.40 and 67,178.40

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Solution

The fourth proportional to 96,669.60, 145,004.40 and 67,178.40 is: 100,767.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,669.60 : 145,004.40 = 67,178.40 : x
  2. Step 2: Convert to fraction form
    96,669.60/145,004.40 = 67,178.40/x
  3. Step 3: Cross multiply
    96,669.60x = 145,004.40 × 67,178.40
  4. Step 4: Simplify right side
    96,669.60x = 9,741,163,584.96
  5. Step 5: Solve for x
    x = 9,741,163,584.96/96,669.60
  6. Step 6: Final answer
    x = 100,767.60

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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.