Home / 118,763.40-178,150.62-66,133.38

Finding the Fourth Proportional to 118,763.40, 178,150.62 and 66,133.38

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Solution

The fourth proportional to 118,763.40, 178,150.62 and 66,133.38 is: 99,203.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,763.40 : 178,150.62 = 66,133.38 : x
  2. Step 2: Convert to fraction form
    118,763.40/178,150.62 = 66,133.38/x
  3. Step 3: Cross multiply
    118,763.40x = 178,150.62 × 66,133.38
  4. Step 4: Simplify right side
    118,763.40x = 11,781,702,649.70
  5. Step 5: Solve for x
    x = 11,781,702,649.70/118,763.40
  6. Step 6: Final answer
    x = 99,203.14

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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.