Home / 101,327.22-139,832.11-55,386.92

Finding the Fourth Proportional to 101,327.22, 139,832.11 and 55,386.92

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Solution

The fourth proportional to 101,327.22, 139,832.11 and 55,386.92 is: 76,434.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,327.22 : 139,832.11 = 55,386.92 : x
  2. Step 2: Convert to fraction form
    101,327.22/139,832.11 = 55,386.92/x
  3. Step 3: Cross multiply
    101,327.22x = 139,832.11 × 55,386.92
  4. Step 4: Simplify right side
    101,327.22x = 7,744,870,308.82
  5. Step 5: Solve for x
    x = 7,744,870,308.82/101,327.22
  6. Step 6: Final answer
    x = 76,434.25

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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.