Home / 104,979.29-157,436.63-30,079.37

Finding the Fourth Proportional to 104,979.29, 157,436.63 and 30,079.37

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Solution

The fourth proportional to 104,979.29, 157,436.63 and 30,079.37 is: 45,109.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,979.29 : 157,436.63 = 30,079.37 : x
  2. Step 2: Convert to fraction form
    104,979.29/157,436.63 = 30,079.37/x
  3. Step 3: Cross multiply
    104,979.29x = 157,436.63 × 30,079.37
  4. Step 4: Simplify right side
    104,979.29x = 4,735,593,707.74
  5. Step 5: Solve for x
    x = 4,735,593,707.74/104,979.29
  6. Step 6: Final answer
    x = 45,109.79

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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.