Home / 115,197.09-158,972.76-64,213.12

Finding the Fourth Proportional to 115,197.09, 158,972.76 and 64,213.12

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Solution

The fourth proportional to 115,197.09, 158,972.76 and 64,213.12 is: 88,614.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,197.09 : 158,972.76 = 64,213.12 : x
  2. Step 2: Convert to fraction form
    115,197.09/158,972.76 = 64,213.12/x
  3. Step 3: Cross multiply
    115,197.09x = 158,972.76 × 64,213.12
  4. Step 4: Simplify right side
    115,197.09x = 10,208,137,113.33
  5. Step 5: Solve for x
    x = 10,208,137,113.33/115,197.09
  6. Step 6: Final answer
    x = 88,614.54

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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.