Home / 115,149.03-158,903.25-64,161.54

Finding the Fourth Proportional to 115,149.03, 158,903.25 and 64,161.54

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Solution

The fourth proportional to 115,149.03, 158,903.25 and 64,161.54 is: 88,541.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,149.03 : 158,903.25 = 64,161.54 : x
  2. Step 2: Convert to fraction form
    115,149.03/158,903.25 = 64,161.54/x
  3. Step 3: Cross multiply
    115,149.03x = 158,903.25 × 64,161.54
  4. Step 4: Simplify right side
    115,149.03x = 10,195,477,231.01
  5. Step 5: Solve for x
    x = 10,195,477,231.01/115,149.03
  6. Step 6: Final answer
    x = 88,541.58

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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.