Home / 140,076.48-193,309.12-85,637.28

Finding the Fourth Proportional to 140,076.48, 193,309.12 and 85,637.28

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Solution

The fourth proportional to 140,076.48, 193,309.12 and 85,637.28 is: 118,181.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,076.48 : 193,309.12 = 85,637.28 : x
  2. Step 2: Convert to fraction form
    140,076.48/193,309.12 = 85,637.28/x
  3. Step 3: Cross multiply
    140,076.48x = 193,309.12 × 85,637.28
  4. Step 4: Simplify right side
    140,076.48x = 16,554,467,235.99
  5. Step 5: Solve for x
    x = 16,554,467,235.99/140,076.48
  6. Step 6: Final answer
    x = 118,181.63

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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.