Home / 99,943.01-137,908.03-64,181.46

Finding the Fourth Proportional to 99,943.01, 137,908.03 and 64,181.46

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Solution

The fourth proportional to 99,943.01, 137,908.03 and 64,181.46 is: 88,561.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,943.01 : 137,908.03 = 64,181.46 : x
  2. Step 2: Convert to fraction form
    99,943.01/137,908.03 = 64,181.46/x
  3. Step 3: Cross multiply
    99,943.01x = 137,908.03 × 64,181.46
  4. Step 4: Simplify right side
    99,943.01x = 8,851,138,550.67
  5. Step 5: Solve for x
    x = 8,851,138,550.67/99,943.01
  6. Step 6: Final answer
    x = 88,561.86

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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.