Home / 103,299.20-155,276.85-97,394.30

Finding the Fourth Proportional to 103,299.20, 155,276.85 and 97,394.30

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Solution

The fourth proportional to 103,299.20, 155,276.85 and 97,394.30 is: 146,400.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,299.20 : 155,276.85 = 97,394.30 : x
  2. Step 2: Convert to fraction form
    103,299.20/155,276.85 = 97,394.30/x
  3. Step 3: Cross multiply
    103,299.20x = 155,276.85 × 97,394.30
  4. Step 4: Simplify right side
    103,299.20x = 15,123,080,111.96
  5. Step 5: Solve for x
    x = 15,123,080,111.96/103,299.20
  6. Step 6: Final answer
    x = 146,400.75

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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.