Home / 108,009.81-161,995.23-29,105.61

Finding the Fourth Proportional to 108,009.81, 161,995.23 and 29,105.61

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Solution

The fourth proportional to 108,009.81, 161,995.23 and 29,105.61 is: 43,653.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,009.81 : 161,995.23 = 29,105.61 : x
  2. Step 2: Convert to fraction form
    108,009.81/161,995.23 = 29,105.61/x
  3. Step 3: Cross multiply
    108,009.81x = 161,995.23 × 29,105.61
  4. Step 4: Simplify right side
    108,009.81x = 4,714,969,986.24
  5. Step 5: Solve for x
    x = 4,714,969,986.24/108,009.81
  6. Step 6: Final answer
    x = 43,653.16

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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.