Home / 108,305.36-162,471-38,170.16

Finding the Fourth Proportional to 108,305.36, 162,471 and 38,170.16

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Solution

The fourth proportional to 108,305.36, 162,471 and 38,170.16 is: 57,259.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,305.36 : 162,471 = 38,170.16 : x
  2. Step 2: Convert to fraction form
    108,305.36/162,471 = 38,170.16/x
  3. Step 3: Cross multiply
    108,305.36x = 162,471 × 38,170.16
  4. Step 4: Simplify right side
    108,305.36x = 6,201,544,065.36
  5. Step 5: Solve for x
    x = 6,201,544,065.36/108,305.36
  6. Step 6: Final answer
    x = 57,259.81

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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.