Home / 118,970.42-178,217.70-71,559.34

Finding the Fourth Proportional to 118,970.42, 178,217.70 and 71,559.34

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Solution

The fourth proportional to 118,970.42, 178,217.70 and 71,559.34 is: 107,195.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,970.42 : 178,217.70 = 71,559.34 : x
  2. Step 2: Convert to fraction form
    118,970.42/178,217.70 = 71,559.34/x
  3. Step 3: Cross multiply
    118,970.42x = 178,217.70 × 71,559.34
  4. Step 4: Simplify right side
    118,970.42x = 12,753,140,097.23
  5. Step 5: Solve for x
    x = 12,753,140,097.23/118,970.42
  6. Step 6: Final answer
    x = 107,195.89

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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.