Home / 105,505.08-158,240.52-38,976.54

Finding the Fourth Proportional to 105,505.08, 158,240.52 and 38,976.54

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Solution

The fourth proportional to 105,505.08, 158,240.52 and 38,976.54 is: 58,458.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,505.08 : 158,240.52 = 38,976.54 : x
  2. Step 2: Convert to fraction form
    105,505.08/158,240.52 = 38,976.54/x
  3. Step 3: Cross multiply
    105,505.08x = 158,240.52 × 38,976.54
  4. Step 4: Simplify right side
    105,505.08x = 6,167,667,957.40
  5. Step 5: Solve for x
    x = 6,167,667,957.40/105,505.08
  6. Step 6: Final answer
    x = 58,458.49

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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.