Home / 140,708.41-194,177.92-76,178.32

Finding the Fourth Proportional to 140,708.41, 194,177.92 and 76,178.32

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Solution

The fourth proportional to 140,708.41, 194,177.92 and 76,178.32 is: 105,126.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,708.41 : 194,177.92 = 76,178.32 : x
  2. Step 2: Convert to fraction form
    140,708.41/194,177.92 = 76,178.32/x
  3. Step 3: Cross multiply
    140,708.41x = 194,177.92 × 76,178.32
  4. Step 4: Simplify right side
    140,708.41x = 14,792,147,345.80
  5. Step 5: Solve for x
    x = 14,792,147,345.80/140,708.41
  6. Step 6: Final answer
    x = 105,126.25

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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.