Home / 120,801.54-181,206.10-57,628.56

Finding the Fourth Proportional to 120,801.54, 181,206.10 and 57,628.56

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Solution

The fourth proportional to 120,801.54, 181,206.10 and 57,628.56 is: 86,444.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,801.54 : 181,206.10 = 57,628.56 : x
  2. Step 2: Convert to fraction form
    120,801.54/181,206.10 = 57,628.56/x
  3. Step 3: Cross multiply
    120,801.54x = 181,206.10 × 57,628.56
  4. Step 4: Simplify right side
    120,801.54x = 10,442,646,606.22
  5. Step 5: Solve for x
    x = 10,442,646,606.22/120,801.54
  6. Step 6: Final answer
    x = 86,444.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.