Home / 103,421.30-155,131.95-36,863.60

Finding the Fourth Proportional to 103,421.30, 155,131.95 and 36,863.60

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Solution

The fourth proportional to 103,421.30, 155,131.95 and 36,863.60 is: 55,295.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,421.30 : 155,131.95 = 36,863.60 : x
  2. Step 2: Convert to fraction form
    103,421.30/155,131.95 = 36,863.60/x
  3. Step 3: Cross multiply
    103,421.30x = 155,131.95 × 36,863.60
  4. Step 4: Simplify right side
    103,421.30x = 5,718,722,152.02
  5. Step 5: Solve for x
    x = 5,718,722,152.02/103,421.30
  6. Step 6: Final answer
    x = 55,295.40

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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.