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Finding the Fourth Proportional to 115,304.09, 159,119.60 and 65,003.09

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Solution

The fourth proportional to 115,304.09, 159,119.60 and 65,003.09 is: 89,704.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,304.09 : 159,119.60 = 65,003.09 : x
  2. Step 2: Convert to fraction form
    115,304.09/159,119.60 = 65,003.09/x
  3. Step 3: Cross multiply
    115,304.09x = 159,119.60 × 65,003.09
  4. Step 4: Simplify right side
    115,304.09x = 10,343,264,558.95
  5. Step 5: Solve for x
    x = 10,343,264,558.95/115,304.09
  6. Step 6: Final answer
    x = 89,704.23

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1.5x scale

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.