Home / 101,481.36-140,039.28-56,158.50

Finding the Fourth Proportional to 101,481.36, 140,039.28 and 56,158.50

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Solution

The fourth proportional to 101,481.36, 140,039.28 and 56,158.50 is: 77,495.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,481.36 : 140,039.28 = 56,158.50 : x
  2. Step 2: Convert to fraction form
    101,481.36/140,039.28 = 56,158.50/x
  3. Step 3: Cross multiply
    101,481.36x = 140,039.28 × 56,158.50
  4. Step 4: Simplify right side
    101,481.36x = 7,864,395,905.88
  5. Step 5: Solve for x
    x = 7,864,395,905.88/101,481.36
  6. Step 6: Final answer
    x = 77,495.96

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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.