Home / 239,120.70-358,513.29-105,928.62

Finding the Fourth Proportional to 239,120.70, 358,513.29 and 105,928.62

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Solution

The fourth proportional to 239,120.70, 358,513.29 and 105,928.62 is: 158,818.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,120.70 : 358,513.29 = 105,928.62 : x
  2. Step 2: Convert to fraction form
    239,120.70/358,513.29 = 105,928.62/x
  3. Step 3: Cross multiply
    239,120.70x = 358,513.29 × 105,928.62
  4. Step 4: Simplify right side
    239,120.70x = 37,976,818,061.36
  5. Step 5: Solve for x
    x = 37,976,818,061.36/239,120.70
  6. Step 6: Final answer
    x = 158,818.61

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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.