Home / 101,530.22-140,106.56-55,588.64

Finding the Fourth Proportional to 101,530.22, 140,106.56 and 55,588.64

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Solution

The fourth proportional to 101,530.22, 140,106.56 and 55,588.64 is: 76,709.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,530.22 : 140,106.56 = 55,588.64 : x
  2. Step 2: Convert to fraction form
    101,530.22/140,106.56 = 55,588.64/x
  3. Step 3: Cross multiply
    101,530.22x = 140,106.56 × 55,588.64
  4. Step 4: Simplify right side
    101,530.22x = 7,788,332,147.00
  5. Step 5: Solve for x
    x = 7,788,332,147.00/101,530.22
  6. Step 6: Final answer
    x = 76,709.50

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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.