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Finding the Fourth Proportional to 118,775.76, 178,169.76 and 30,030.04

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Solution

The fourth proportional to 118,775.76, 178,169.76 and 30,030.04 is: 45,046.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,775.76 : 178,169.76 = 30,030.04 : x
  2. Step 2: Convert to fraction form
    118,775.76/178,169.76 = 30,030.04/x
  3. Step 3: Cross multiply
    118,775.76x = 178,169.76 × 30,030.04
  4. Step 4: Simplify right side
    118,775.76x = 5,350,445,019.59
  5. Step 5: Solve for x
    x = 5,350,445,019.59/118,775.76
  6. Step 6: Final answer
    x = 45,046.61

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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.