Home / 151,561.19-209,149.63-83,581.03

Finding the Fourth Proportional to 151,561.19, 209,149.63 and 83,581.03

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Solution

The fourth proportional to 151,561.19, 209,149.63 and 83,581.03 is: 115,339.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,561.19 : 209,149.63 = 83,581.03 : x
  2. Step 2: Convert to fraction form
    151,561.19/209,149.63 = 83,581.03/x
  3. Step 3: Cross multiply
    151,561.19x = 209,149.63 × 83,581.03
  4. Step 4: Simplify right side
    151,561.19x = 17,480,940,035.87
  5. Step 5: Solve for x
    x = 17,480,940,035.87/151,561.19
  6. Step 6: Final answer
    x = 115,339.16

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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.