Home / 145,310.40-217,965.60-92,563.20

Finding the Fourth Proportional to 145,310.40, 217,965.60 and 92,563.20

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Solution

The fourth proportional to 145,310.40, 217,965.60 and 92,563.20 is: 138,844.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,310.40 : 217,965.60 = 92,563.20 : x
  2. Step 2: Convert to fraction form
    145,310.40/217,965.60 = 92,563.20/x
  3. Step 3: Cross multiply
    145,310.40x = 217,965.60 × 92,563.20
  4. Step 4: Simplify right side
    145,310.40x = 20,175,593,425.92
  5. Step 5: Solve for x
    x = 20,175,593,425.92/145,310.40
  6. Step 6: Final answer
    x = 138,844.80

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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.