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Finding the Fourth Proportional to 151,118.82, 208,437.84 and 130,939.86

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Solution

The fourth proportional to 151,118.82, 208,437.84 and 130,939.86 is: 180,605.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,118.82 : 208,437.84 = 130,939.86 : x
  2. Step 2: Convert to fraction form
    151,118.82/208,437.84 = 130,939.86/x
  3. Step 3: Cross multiply
    151,118.82x = 208,437.84 × 130,939.86
  4. Step 4: Simplify right side
    151,118.82x = 27,292,821,588.30
  5. Step 5: Solve for x
    x = 27,292,821,588.30/151,118.82
  6. Step 6: Final answer
    x = 180,605.05

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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.