Home / 108,303.36-162,468-38,168.16

Finding the Fourth Proportional to 108,303.36, 162,468 and 38,168.16

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Solution

The fourth proportional to 108,303.36, 162,468 and 38,168.16 is: 57,256.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,303.36 : 162,468 = 38,168.16 : x
  2. Step 2: Convert to fraction form
    108,303.36/162,468 = 38,168.16/x
  3. Step 3: Cross multiply
    108,303.36x = 162,468 × 38,168.16
  4. Step 4: Simplify right side
    108,303.36x = 6,201,104,618.88
  5. Step 5: Solve for x
    x = 6,201,104,618.88/108,303.36
  6. Step 6: Final answer
    x = 57,256.81

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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.