Home / 212,391.72-293,095.06-115,591.46

Finding the Fourth Proportional to 212,391.72, 293,095.06 and 115,591.46

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Solution

The fourth proportional to 212,391.72, 293,095.06 and 115,591.46 is: 159,513.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,391.72 : 293,095.06 = 115,591.46 : x
  2. Step 2: Convert to fraction form
    212,391.72/293,095.06 = 115,591.46/x
  3. Step 3: Cross multiply
    212,391.72x = 293,095.06 × 115,591.46
  4. Step 4: Simplify right side
    212,391.72x = 33,879,284,149.73
  5. Step 5: Solve for x
    x = 33,879,284,149.73/212,391.72
  6. Step 6: Final answer
    x = 159,513.21

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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.