Home / 115,344.18-159,203.97-65,072.34

Finding the Fourth Proportional to 115,344.18, 159,203.97 and 65,072.34

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Solution

The fourth proportional to 115,344.18, 159,203.97 and 65,072.34 is: 89,816.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,344.18 : 159,203.97 = 65,072.34 : x
  2. Step 2: Convert to fraction form
    115,344.18/159,203.97 = 65,072.34/x
  3. Step 3: Cross multiply
    115,344.18x = 159,203.97 × 65,072.34
  4. Step 4: Simplify right side
    115,344.18x = 10,359,774,865.19
  5. Step 5: Solve for x
    x = 10,359,774,865.19/115,344.18
  6. Step 6: Final answer
    x = 89,816.19

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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.