Home / 118,830.36-178,285.24-38,871.96

Finding the Fourth Proportional to 118,830.36, 178,285.24 and 38,871.96

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Solution

The fourth proportional to 118,830.36, 178,285.24 and 38,871.96 is: 58,320.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,830.36 : 178,285.24 = 38,871.96 : x
  2. Step 2: Convert to fraction form
    118,830.36/178,285.24 = 38,871.96/x
  3. Step 3: Cross multiply
    118,830.36x = 178,285.24 × 38,871.96
  4. Step 4: Simplify right side
    118,830.36x = 6,930,296,717.87
  5. Step 5: Solve for x
    x = 6,930,296,717.87/118,830.36
  6. Step 6: Final answer
    x = 58,320.93

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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.