Home / 138,664.56-208,022.76-55,565.04

Finding the Fourth Proportional to 138,664.56, 208,022.76 and 55,565.04

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Solution

The fourth proportional to 138,664.56, 208,022.76 and 55,565.04 is: 83,357.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,664.56 : 208,022.76 = 55,565.04 : x
  2. Step 2: Convert to fraction form
    138,664.56/208,022.76 = 55,565.04/x
  3. Step 3: Cross multiply
    138,664.56x = 208,022.76 × 55,565.04
  4. Step 4: Simplify right side
    138,664.56x = 11,558,792,980.31
  5. Step 5: Solve for x
    x = 11,558,792,980.31/138,664.56
  6. Step 6: Final answer
    x = 83,357.95

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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.