Home / 140,048.60-193,261.21-76,382.60

Finding the Fourth Proportional to 140,048.60, 193,261.21 and 76,382.60

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Solution

The fourth proportional to 140,048.60, 193,261.21 and 76,382.60 is: 105,404.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,048.60 : 193,261.21 = 76,382.60 : x
  2. Step 2: Convert to fraction form
    140,048.60/193,261.21 = 76,382.60/x
  3. Step 3: Cross multiply
    140,048.60x = 193,261.21 × 76,382.60
  4. Step 4: Simplify right side
    140,048.60x = 14,761,792,541.68
  5. Step 5: Solve for x
    x = 14,761,792,541.68/140,048.60
  6. Step 6: Final answer
    x = 105,404.79

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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.