Home / 140,076.07-193,305.54-76,415.20

Finding the Fourth Proportional to 140,076.07, 193,305.54 and 76,415.20

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Solution

The fourth proportional to 140,076.07, 193,305.54 and 76,415.20 is: 105,453.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,076.07 : 193,305.54 = 76,415.20 : x
  2. Step 2: Convert to fraction form
    140,076.07/193,305.54 = 76,415.20/x
  3. Step 3: Cross multiply
    140,076.07x = 193,305.54 × 76,415.20
  4. Step 4: Simplify right side
    140,076.07x = 14,771,480,533.68
  5. Step 5: Solve for x
    x = 14,771,480,533.68/140,076.07
  6. Step 6: Final answer
    x = 105,453.28

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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.