Home / 115,538.39-159,440.03-64,551.50

Finding the Fourth Proportional to 115,538.39, 159,440.03 and 64,551.50

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Solution

The fourth proportional to 115,538.39, 159,440.03 and 64,551.50 is: 89,079.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,538.39 : 159,440.03 = 64,551.50 : x
  2. Step 2: Convert to fraction form
    115,538.39/159,440.03 = 64,551.50/x
  3. Step 3: Cross multiply
    115,538.39x = 159,440.03 × 64,551.50
  4. Step 4: Simplify right side
    115,538.39x = 10,292,093,096.55
  5. Step 5: Solve for x
    x = 10,292,093,096.55/115,538.39
  6. Step 6: Final answer
    x = 89,079.42

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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.