Home / 118,929.60-178,243.20-48,729.60

Finding the Fourth Proportional to 118,929.60, 178,243.20 and 48,729.60

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Solution

The fourth proportional to 118,929.60, 178,243.20 and 48,729.60 is: 73,032.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,929.60 : 178,243.20 = 48,729.60 : x
  2. Step 2: Convert to fraction form
    118,929.60/178,243.20 = 48,729.60/x
  3. Step 3: Cross multiply
    118,929.60x = 178,243.20 × 48,729.60
  4. Step 4: Simplify right side
    118,929.60x = 8,685,719,838.72
  5. Step 5: Solve for x
    x = 8,685,719,838.72/118,929.60
  6. Step 6: Final answer
    x = 73,032.45

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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.