Home / 119,619.14-165,056.38-67,928.18

Finding the Fourth Proportional to 119,619.14, 165,056.38 and 67,928.18

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Solution

The fourth proportional to 119,619.14, 165,056.38 and 67,928.18 is: 93,730.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,619.14 : 165,056.38 = 67,928.18 : x
  2. Step 2: Convert to fraction form
    119,619.14/165,056.38 = 67,928.18/x
  3. Step 3: Cross multiply
    119,619.14x = 165,056.38 × 67,928.18
  4. Step 4: Simplify right side
    119,619.14x = 11,211,979,490.79
  5. Step 5: Solve for x
    x = 11,211,979,490.79/119,619.14
  6. Step 6: Final answer
    x = 93,730.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.