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Finding the Fourth Proportional to 151,343.64, 208,855.67 and 83,360.90

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Solution

The fourth proportional to 151,343.64, 208,855.67 and 83,360.90 is: 115,038.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,343.64 : 208,855.67 = 83,360.90 : x
  2. Step 2: Convert to fraction form
    151,343.64/208,855.67 = 83,360.90/x
  3. Step 3: Cross multiply
    151,343.64x = 208,855.67 × 83,360.90
  4. Step 4: Simplify right side
    151,343.64x = 17,410,395,551.82
  5. Step 5: Solve for x
    x = 17,410,395,551.82/151,343.64
  6. Step 6: Final answer
    x = 115,038.83

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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.