Home / 103,515.10-155,287.43-36,941.20

Finding the Fourth Proportional to 103,515.10, 155,287.43 and 36,941.20

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Solution

The fourth proportional to 103,515.10, 155,287.43 and 36,941.20 is: 55,417.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,515.10 : 155,287.43 = 36,941.20 : x
  2. Step 2: Convert to fraction form
    103,515.10/155,287.43 = 36,941.20/x
  3. Step 3: Cross multiply
    103,515.10x = 155,287.43 × 36,941.20
  4. Step 4: Simplify right side
    103,515.10x = 5,736,504,009.12
  5. Step 5: Solve for x
    x = 5,736,504,009.12/103,515.10
  6. Step 6: Final answer
    x = 55,417.07

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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.