Home / 147,515.78-203,569.58-82,980.14

Finding the Fourth Proportional to 147,515.78, 203,569.58 and 82,980.14

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Solution

The fourth proportional to 147,515.78, 203,569.58 and 82,980.14 is: 114,511.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,515.78 : 203,569.58 = 82,980.14 : x
  2. Step 2: Convert to fraction form
    147,515.78/203,569.58 = 82,980.14/x
  3. Step 3: Cross multiply
    147,515.78x = 203,569.58 × 82,980.14
  4. Step 4: Simplify right side
    147,515.78x = 16,892,230,815.39
  5. Step 5: Solve for x
    x = 16,892,230,815.39/147,515.78
  6. Step 6: Final answer
    x = 114,511.35

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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.