Home / 103,601.07-155,378.48-40,422.87

Finding the Fourth Proportional to 103,601.07, 155,378.48 and 40,422.87

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Solution

The fourth proportional to 103,601.07, 155,378.48 and 40,422.87 is: 60,625.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,601.07 : 155,378.48 = 40,422.87 : x
  2. Step 2: Convert to fraction form
    103,601.07/155,378.48 = 40,422.87/x
  3. Step 3: Cross multiply
    103,601.07x = 155,378.48 × 40,422.87
  4. Step 4: Simplify right side
    103,601.07x = 6,280,843,895.72
  5. Step 5: Solve for x
    x = 6,280,843,895.72/103,601.07
  6. Step 6: Final answer
    x = 60,625.28

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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.