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Finding the Fourth Proportional to 115,175.70, 158,945.06 and 64,193.66

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Solution

The fourth proportional to 115,175.70, 158,945.06 and 64,193.66 is: 88,588.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,175.70 : 158,945.06 = 64,193.66 : x
  2. Step 2: Convert to fraction form
    115,175.70/158,945.06 = 64,193.66/x
  3. Step 3: Cross multiply
    115,175.70x = 158,945.06 × 64,193.66
  4. Step 4: Simplify right side
    115,175.70x = 10,203,265,140.32
  5. Step 5: Solve for x
    x = 10,203,265,140.32/115,175.70
  6. Step 6: Final answer
    x = 88,588.70

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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.