Home / 103,678.20-155,517.30-41,393.40

Finding the Fourth Proportional to 103,678.20, 155,517.30 and 41,393.40

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Solution

The fourth proportional to 103,678.20, 155,517.30 and 41,393.40 is: 62,090.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,678.20 : 155,517.30 = 41,393.40 : x
  2. Step 2: Convert to fraction form
    103,678.20/155,517.30 = 41,393.40/x
  3. Step 3: Cross multiply
    103,678.20x = 155,517.30 × 41,393.40
  4. Step 4: Simplify right side
    103,678.20x = 6,437,389,805.82
  5. Step 5: Solve for x
    x = 6,437,389,805.82/103,678.20
  6. Step 6: Final answer
    x = 62,090.10

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1.5x scale

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.