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Finding the Fourth Proportional to 115,538.82, 159,440.64 and 64,551.93

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Solution

The fourth proportional to 115,538.82, 159,440.64 and 64,551.93 is: 89,080.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,538.82 : 159,440.64 = 64,551.93 : x
  2. Step 2: Convert to fraction form
    115,538.82/159,440.64 = 64,551.93/x
  3. Step 3: Cross multiply
    115,538.82x = 159,440.64 × 64,551.93
  4. Step 4: Simplify right side
    115,538.82x = 10,292,201,032.44
  5. Step 5: Solve for x
    x = 10,292,201,032.44/115,538.82
  6. Step 6: Final answer
    x = 89,080.03

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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.