Home / 138,777.30-208,016.91-59,928.66

Finding the Fourth Proportional to 138,777.30, 208,016.91 and 59,928.66

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Solution

The fourth proportional to 138,777.30, 208,016.91 and 59,928.66 is: 89,828.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,777.30 : 208,016.91 = 59,928.66 : x
  2. Step 2: Convert to fraction form
    138,777.30/208,016.91 = 59,928.66/x
  3. Step 3: Cross multiply
    138,777.30x = 208,016.91 × 59,928.66
  4. Step 4: Simplify right side
    138,777.30x = 12,466,174,673.64
  5. Step 5: Solve for x
    x = 12,466,174,673.64/138,777.30
  6. Step 6: Final answer
    x = 89,828.63

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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.