Home / 140,356.28-193,696.45-76,698.18

Finding the Fourth Proportional to 140,356.28, 193,696.45 and 76,698.18

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Solution

The fourth proportional to 140,356.28, 193,696.45 and 76,698.18 is: 105,846.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,356.28 : 193,696.45 = 76,698.18 : x
  2. Step 2: Convert to fraction form
    140,356.28/193,696.45 = 76,698.18/x
  3. Step 3: Cross multiply
    140,356.28x = 193,696.45 × 76,698.18
  4. Step 4: Simplify right side
    140,356.28x = 14,856,164,995.72
  5. Step 5: Solve for x
    x = 14,856,164,995.72/140,356.28
  6. Step 6: Final answer
    x = 105,846.10

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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.