Home / 101,619.40-140,233.26-56,297.30

Finding the Fourth Proportional to 101,619.40, 140,233.26 and 56,297.30

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Solution

The fourth proportional to 101,619.40, 140,233.26 and 56,297.30 is: 77,689.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,619.40 : 140,233.26 = 56,297.30 : x
  2. Step 2: Convert to fraction form
    101,619.40/140,233.26 = 56,297.30/x
  3. Step 3: Cross multiply
    101,619.40x = 140,233.26 × 56,297.30
  4. Step 4: Simplify right side
    101,619.40x = 7,894,753,908.20
  5. Step 5: Solve for x
    x = 7,894,753,908.20/101,619.40
  6. Step 6: Final answer
    x = 77,689.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.