Home / 105,899.40-158,659.56-70,732.44

Finding the Fourth Proportional to 105,899.40, 158,659.56 and 70,732.44

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Solution

The fourth proportional to 105,899.40, 158,659.56 and 70,732.44 is: 105,972.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,899.40 : 158,659.56 = 70,732.44 : x
  2. Step 2: Convert to fraction form
    105,899.40/158,659.56 = 70,732.44/x
  3. Step 3: Cross multiply
    105,899.40x = 158,659.56 × 70,732.44
  4. Step 4: Simplify right side
    105,899.40x = 11,222,377,808.13
  5. Step 5: Solve for x
    x = 11,222,377,808.13/105,899.40
  6. Step 6: Final answer
    x = 105,972.06

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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.