Home / 118,066.16-177,074.32-43,221.60

Finding the Fourth Proportional to 118,066.16, 177,074.32 and 43,221.60

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Solution

The fourth proportional to 118,066.16, 177,074.32 and 43,221.60 is: 64,823.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,066.16 : 177,074.32 = 43,221.60 : x
  2. Step 2: Convert to fraction form
    118,066.16/177,074.32 = 43,221.60/x
  3. Step 3: Cross multiply
    118,066.16x = 177,074.32 × 43,221.60
  4. Step 4: Simplify right side
    118,066.16x = 7,653,435,429.31
  5. Step 5: Solve for x
    x = 7,653,435,429.31/118,066.16
  6. Step 6: Final answer
    x = 64,823.28

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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.