Home / 118,666.16-178,013.91-43,786.70

Finding the Fourth Proportional to 118,666.16, 178,013.91 and 43,786.70

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Solution

The fourth proportional to 118,666.16, 178,013.91 and 43,786.70 is: 65,685.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,666.16 : 178,013.91 = 43,786.70 : x
  2. Step 2: Convert to fraction form
    118,666.16/178,013.91 = 43,786.70/x
  3. Step 3: Cross multiply
    118,666.16x = 178,013.91 × 43,786.70
  4. Step 4: Simplify right side
    118,666.16x = 7,794,641,673.00
  5. Step 5: Solve for x
    x = 7,794,641,673.00/118,666.16
  6. Step 6: Final answer
    x = 65,685.46

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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.