Home / 118,981.38-178,630.46-69,097.29

Finding the Fourth Proportional to 118,981.38, 178,630.46 and 69,097.29

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Solution

The fourth proportional to 118,981.38, 178,630.46 and 69,097.29 is: 103,737.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,981.38 : 178,630.46 = 69,097.29 : x
  2. Step 2: Convert to fraction form
    118,981.38/178,630.46 = 69,097.29/x
  3. Step 3: Cross multiply
    118,981.38x = 178,630.46 × 69,097.29
  4. Step 4: Simplify right side
    118,981.38x = 12,342,880,697.45
  5. Step 5: Solve for x
    x = 12,342,880,697.45/118,981.38
  6. Step 6: Final answer
    x = 103,737.92

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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.