Home / 103,164.09-154,713.73-39,979.83

Finding the Fourth Proportional to 103,164.09, 154,713.73 and 39,979.83

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Solution

The fourth proportional to 103,164.09, 154,713.73 and 39,979.83 is: 59,957.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,164.09 : 154,713.73 = 39,979.83 : x
  2. Step 2: Convert to fraction form
    103,164.09/154,713.73 = 39,979.83/x
  3. Step 3: Cross multiply
    103,164.09x = 154,713.73 × 39,979.83
  4. Step 4: Simplify right side
    103,164.09x = 6,185,428,624.07
  5. Step 5: Solve for x
    x = 6,185,428,624.07/103,164.09
  6. Step 6: Final answer
    x = 59,957.19

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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.