Home / 188,845.18-260,612.72-102,807.30

Finding the Fourth Proportional to 188,845.18, 260,612.72 and 102,807.30

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Solution

The fourth proportional to 188,845.18, 260,612.72 and 102,807.30 is: 141,877.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,845.18 : 260,612.72 = 102,807.30 : x
  2. Step 2: Convert to fraction form
    188,845.18/260,612.72 = 102,807.30/x
  3. Step 3: Cross multiply
    188,845.18x = 260,612.72 × 102,807.30
  4. Step 4: Simplify right side
    188,845.18x = 26,792,890,088.86
  5. Step 5: Solve for x
    x = 26,792,890,088.86/188,845.18
  6. Step 6: Final answer
    x = 141,877.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.