Home / 118,066.12-177,074.28-43,221.64

Finding the Fourth Proportional to 118,066.12, 177,074.28 and 43,221.64

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Solution

The fourth proportional to 118,066.12, 177,074.28 and 43,221.64 is: 64,823.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,066.12 : 177,074.28 = 43,221.64 : x
  2. Step 2: Convert to fraction form
    118,066.12/177,074.28 = 43,221.64/x
  3. Step 3: Cross multiply
    118,066.12x = 177,074.28 × 43,221.64
  4. Step 4: Simplify right side
    118,066.12x = 7,653,440,783.42
  5. Step 5: Solve for x
    x = 7,653,440,783.42/118,066.12
  6. Step 6: Final answer
    x = 64,823.34

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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.