Home / 103,986.30-155,979.45-37,428.60

Finding the Fourth Proportional to 103,986.30, 155,979.45 and 37,428.60

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Solution

The fourth proportional to 103,986.30, 155,979.45 and 37,428.60 is: 56,142.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,986.30 : 155,979.45 = 37,428.60 : x
  2. Step 2: Convert to fraction form
    103,986.30/155,979.45 = 37,428.60/x
  3. Step 3: Cross multiply
    103,986.30x = 155,979.45 × 37,428.60
  4. Step 4: Simplify right side
    103,986.30x = 5,838,092,442.27
  5. Step 5: Solve for x
    x = 5,838,092,442.27/103,986.30
  6. Step 6: Final answer
    x = 56,142.90

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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.