Home / 106,304.72-145,638.18-102,318.80

Finding the Fourth Proportional to 106,304.72, 145,638.18 and 102,318.80

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Solution

The fourth proportional to 106,304.72, 145,638.18 and 102,318.80 is: 140,177.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,304.72 : 145,638.18 = 102,318.80 : x
  2. Step 2: Convert to fraction form
    106,304.72/145,638.18 = 102,318.80/x
  3. Step 3: Cross multiply
    106,304.72x = 145,638.18 × 102,318.80
  4. Step 4: Simplify right side
    106,304.72x = 14,901,523,811.78
  5. Step 5: Solve for x
    x = 14,901,523,811.78/106,304.72
  6. Step 6: Final answer
    x = 140,177.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.