Home / 115,120.02-158,863.24-64,132.68

Finding the Fourth Proportional to 115,120.02, 158,863.24 and 64,132.68

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Solution

The fourth proportional to 115,120.02, 158,863.24 and 64,132.68 is: 88,501.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,120.02 : 158,863.24 = 64,132.68 : x
  2. Step 2: Convert to fraction form
    115,120.02/158,863.24 = 64,132.68/x
  3. Step 3: Cross multiply
    115,120.02x = 158,863.24 × 64,132.68
  4. Step 4: Simplify right side
    115,120.02x = 10,188,325,334.68
  5. Step 5: Solve for x
    x = 10,188,325,334.68/115,120.02
  6. Step 6: Final answer
    x = 88,501.77

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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.