Home / 151,129.29-208,558.43-83,144.81

Finding the Fourth Proportional to 151,129.29, 208,558.43 and 83,144.81

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Solution

The fourth proportional to 151,129.29, 208,558.43 and 83,144.81 is: 114,739.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,129.29 : 208,558.43 = 83,144.81 : x
  2. Step 2: Convert to fraction form
    151,129.29/208,558.43 = 83,144.81/x
  3. Step 3: Cross multiply
    151,129.29x = 208,558.43 × 83,144.81
  4. Step 4: Simplify right side
    151,129.29x = 17,340,549,577.73
  5. Step 5: Solve for x
    x = 17,340,549,577.73/151,129.29
  6. Step 6: Final answer
    x = 114,739.84

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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.