Home / 181,986.90-251,138.47-101,412.66

Finding the Fourth Proportional to 181,986.90, 251,138.47 and 101,412.66

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Solution

The fourth proportional to 181,986.90, 251,138.47 and 101,412.66 is: 139,947.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,986.90 : 251,138.47 = 101,412.66 : x
  2. Step 2: Convert to fraction form
    181,986.90/251,138.47 = 101,412.66/x
  3. Step 3: Cross multiply
    181,986.90x = 251,138.47 × 101,412.66
  4. Step 4: Simplify right side
    181,986.90x = 25,468,620,271.03
  5. Step 5: Solve for x
    x = 25,468,620,271.03/181,986.90
  6. Step 6: Final answer
    x = 139,947.55

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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.