Home / 118,829.36-178,249.40-38,871.89

Finding the Fourth Proportional to 118,829.36, 178,249.40 and 38,871.89

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Solution

The fourth proportional to 118,829.36, 178,249.40 and 38,871.89 is: 58,309.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,829.36 : 178,249.40 = 38,871.89 : x
  2. Step 2: Convert to fraction form
    118,829.36/178,249.40 = 38,871.89/x
  3. Step 3: Cross multiply
    118,829.36x = 178,249.40 × 38,871.89
  4. Step 4: Simplify right side
    118,829.36x = 6,928,889,983.76
  5. Step 5: Solve for x
    x = 6,928,889,983.76/118,829.36
  6. Step 6: Final answer
    x = 58,309.58

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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.