Home / 115,236.02-172,736.42-73,147.20

Finding the Fourth Proportional to 115,236.02, 172,736.42 and 73,147.20

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Solution

The fourth proportional to 115,236.02, 172,736.42 and 73,147.20 is: 109,646.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,236.02 : 172,736.42 = 73,147.20 : x
  2. Step 2: Convert to fraction form
    115,236.02/172,736.42 = 73,147.20/x
  3. Step 3: Cross multiply
    115,236.02x = 172,736.42 × 73,147.20
  4. Step 4: Simplify right side
    115,236.02x = 12,635,185,095.29
  5. Step 5: Solve for x
    x = 12,635,185,095.29/115,236.02
  6. Step 6: Final answer
    x = 109,646.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.