Home / 120,707.82-181,058.59-57,572.57

Finding the Fourth Proportional to 120,707.82, 181,058.59 and 57,572.57

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Solution

The fourth proportional to 120,707.82, 181,058.59 and 57,572.57 is: 86,357.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,707.82 : 181,058.59 = 57,572.57 : x
  2. Step 2: Convert to fraction form
    120,707.82/181,058.59 = 57,572.57/x
  3. Step 3: Cross multiply
    120,707.82x = 181,058.59 × 57,572.57
  4. Step 4: Simplify right side
    120,707.82x = 10,424,008,871.49
  5. Step 5: Solve for x
    x = 10,424,008,871.49/120,707.82
  6. Step 6: Final answer
    x = 86,357.36

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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.