Home / 103,142.49-154,774.05-43,165.96

Finding the Fourth Proportional to 103,142.49, 154,774.05 and 43,165.96

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Solution

The fourth proportional to 103,142.49, 154,774.05 and 43,165.96 is: 64,774.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,142.49 : 154,774.05 = 43,165.96 : x
  2. Step 2: Convert to fraction form
    103,142.49/154,774.05 = 43,165.96/x
  3. Step 3: Cross multiply
    103,142.49x = 154,774.05 × 43,165.96
  4. Step 4: Simplify right side
    103,142.49x = 6,680,969,612.33
  5. Step 5: Solve for x
    x = 6,680,969,612.33/103,142.49
  6. Step 6: Final answer
    x = 64,774.17

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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.