Home / 118,961.18-178,385.28-69,056.60

Finding the Fourth Proportional to 118,961.18, 178,385.28 and 69,056.60

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Solution

The fourth proportional to 118,961.18, 178,385.28 and 69,056.60 is: 103,552.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,961.18 : 178,385.28 = 69,056.60 : x
  2. Step 2: Convert to fraction form
    118,961.18/178,385.28 = 69,056.60/x
  3. Step 3: Cross multiply
    118,961.18x = 178,385.28 × 69,056.60
  4. Step 4: Simplify right side
    118,961.18x = 12,318,680,926.85
  5. Step 5: Solve for x
    x = 12,318,680,926.85/118,961.18
  6. Step 6: Final answer
    x = 103,552.11

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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.