Home / 181,965.79-251,109.39-101,391.59

Finding the Fourth Proportional to 181,965.79, 251,109.39 and 101,391.59

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Solution

The fourth proportional to 181,965.79, 251,109.39 and 101,391.59 is: 139,918.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,965.79 : 251,109.39 = 101,391.59 : x
  2. Step 2: Convert to fraction form
    181,965.79/251,109.39 = 101,391.59/x
  3. Step 3: Cross multiply
    181,965.79x = 251,109.39 × 101,391.59
  4. Step 4: Simplify right side
    181,965.79x = 25,460,381,324.02
  5. Step 5: Solve for x
    x = 25,460,381,324.02/181,965.79
  6. Step 6: Final answer
    x = 139,918.50

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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.