Home / 118,765.36-178,164.43-39,902.14

Finding the Fourth Proportional to 118,765.36, 178,164.43 and 39,902.14

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Solution

The fourth proportional to 118,765.36, 178,164.43 and 39,902.14 is: 59,858.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,765.36 : 178,164.43 = 39,902.14 : x
  2. Step 2: Convert to fraction form
    118,765.36/178,164.43 = 39,902.14/x
  3. Step 3: Cross multiply
    118,765.36x = 178,164.43 × 39,902.14
  4. Step 4: Simplify right side
    118,765.36x = 7,109,142,028.88
  5. Step 5: Solve for x
    x = 7,109,142,028.88/118,765.36
  6. Step 6: Final answer
    x = 59,858.72

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1.5x scale

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.