Home / 231,169.43-319,011.32-127,803.18

Finding the Fourth Proportional to 231,169.43, 319,011.32 and 127,803.18

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Solution

The fourth proportional to 231,169.43, 319,011.32 and 127,803.18 is: 176,367.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,169.43 : 319,011.32 = 127,803.18 : x
  2. Step 2: Convert to fraction form
    231,169.43/319,011.32 = 127,803.18/x
  3. Step 3: Cross multiply
    231,169.43x = 319,011.32 × 127,803.18
  4. Step 4: Simplify right side
    231,169.43x = 40,770,661,152.00
  5. Step 5: Solve for x
    x = 40,770,661,152.00/231,169.43
  6. Step 6: Final answer
    x = 176,367.01

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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.