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Finding the Fourth Proportional to 118,329.30, 177,299.55 and 111,330.90

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Solution

The fourth proportional to 118,329.30, 177,299.55 and 111,330.90 is: 166,813.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,329.30 : 177,299.55 = 111,330.90 : x
  2. Step 2: Convert to fraction form
    118,329.30/177,299.55 = 111,330.90/x
  3. Step 3: Cross multiply
    118,329.30x = 177,299.55 × 111,330.90
  4. Step 4: Simplify right side
    118,329.30x = 19,738,918,471.10
  5. Step 5: Solve for x
    x = 19,738,918,471.10/118,329.30
  6. Step 6: Final answer
    x = 166,813.45

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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.