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Finding the Fourth Proportional to 103,144.24, 154,724.28 and 43,980.22

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Solution

The fourth proportional to 103,144.24, 154,724.28 and 43,980.22 is: 65,973.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,144.24 : 154,724.28 = 43,980.22 : x
  2. Step 2: Convert to fraction form
    103,144.24/154,724.28 = 43,980.22/x
  3. Step 3: Cross multiply
    103,144.24x = 154,724.28 × 43,980.22
  4. Step 4: Simplify right side
    103,144.24x = 6,804,807,873.74
  5. Step 5: Solve for x
    x = 6,804,807,873.74/103,144.24
  6. Step 6: Final answer
    x = 65,973.71

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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.