Home / 145,096.87-200,243.60-80,569.44

Finding the Fourth Proportional to 145,096.87, 200,243.60 and 80,569.44

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Solution

The fourth proportional to 145,096.87, 200,243.60 and 80,569.44 is: 111,191.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,096.87 : 200,243.60 = 80,569.44 : x
  2. Step 2: Convert to fraction form
    145,096.87/200,243.60 = 80,569.44/x
  3. Step 3: Cross multiply
    145,096.87x = 200,243.60 × 80,569.44
  4. Step 4: Simplify right side
    145,096.87x = 16,133,514,715.58
  5. Step 5: Solve for x
    x = 16,133,514,715.58/145,096.87
  6. Step 6: Final answer
    x = 111,191.34

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1.5x scale

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.