Home / 154,917.61-213,773.50-109,622.14

Finding the Fourth Proportional to 154,917.61, 213,773.50 and 109,622.14

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Solution

The fourth proportional to 154,917.61, 213,773.50 and 109,622.14 is: 151,269.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,917.61 : 213,773.50 = 109,622.14 : x
  2. Step 2: Convert to fraction form
    154,917.61/213,773.50 = 109,622.14/x
  3. Step 3: Cross multiply
    154,917.61x = 213,773.50 × 109,622.14
  4. Step 4: Simplify right side
    154,917.61x = 23,434,308,545.29
  5. Step 5: Solve for x
    x = 23,434,308,545.29/154,917.61
  6. Step 6: Final answer
    x = 151,269.49

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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.