Home / 118,958.19-178,380.78-69,053.59

Finding the Fourth Proportional to 118,958.19, 178,380.78 and 69,053.59

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Solution

The fourth proportional to 118,958.19, 178,380.78 and 69,053.59 is: 103,547.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,958.19 : 178,380.78 = 69,053.59 : x
  2. Step 2: Convert to fraction form
    118,958.19/178,380.78 = 69,053.59/x
  3. Step 3: Cross multiply
    118,958.19x = 178,380.78 × 69,053.59
  4. Step 4: Simplify right side
    118,958.19x = 12,317,833,246.00
  5. Step 5: Solve for x
    x = 12,317,833,246.00/118,958.19
  6. Step 6: Final answer
    x = 103,547.58

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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.