Home / 119,119.39-178,641.19-39,138.92

Finding the Fourth Proportional to 119,119.39, 178,641.19 and 39,138.92

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Solution

The fourth proportional to 119,119.39, 178,641.19 and 39,138.92 is: 58,695.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,119.39 : 178,641.19 = 39,138.92 : x
  2. Step 2: Convert to fraction form
    119,119.39/178,641.19 = 39,138.92/x
  3. Step 3: Cross multiply
    119,119.39x = 178,641.19 × 39,138.92
  4. Step 4: Simplify right side
    119,119.39x = 6,991,822,155.21
  5. Step 5: Solve for x
    x = 6,991,822,155.21/119,119.39
  6. Step 6: Final answer
    x = 58,695.92

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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.