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Finding the Fourth Proportional to 118,505.15, 177,740.24 and 43,607.89

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Solution

The fourth proportional to 118,505.15, 177,740.24 and 43,607.89 is: 65,405.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,505.15 : 177,740.24 = 43,607.89 : x
  2. Step 2: Convert to fraction form
    118,505.15/177,740.24 = 43,607.89/x
  3. Step 3: Cross multiply
    118,505.15x = 177,740.24 × 43,607.89
  4. Step 4: Simplify right side
    118,505.15x = 7,750,876,834.49
  5. Step 5: Solve for x
    x = 7,750,876,834.49/118,505.15
  6. Step 6: Final answer
    x = 65,405.40

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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.