Home / 138,688.44-208,041.30-55,571.64

Finding the Fourth Proportional to 138,688.44, 208,041.30 and 55,571.64

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Solution

The fourth proportional to 138,688.44, 208,041.30 and 55,571.64 is: 83,360.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,688.44 : 208,041.30 = 55,571.64 : x
  2. Step 2: Convert to fraction form
    138,688.44/208,041.30 = 55,571.64/x
  3. Step 3: Cross multiply
    138,688.44x = 208,041.30 × 55,571.64
  4. Step 4: Simplify right side
    138,688.44x = 11,561,196,228.73
  5. Step 5: Solve for x
    x = 11,561,196,228.73/138,688.44
  6. Step 6: Final answer
    x = 83,360.92

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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.