Home / 172,918.08-238,686.48-101,321.28

Finding the Fourth Proportional to 172,918.08, 238,686.48 and 101,321.28

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Solution

The fourth proportional to 172,918.08, 238,686.48 and 101,321.28 is: 139,858.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,918.08 : 238,686.48 = 101,321.28 : x
  2. Step 2: Convert to fraction form
    172,918.08/238,686.48 = 101,321.28/x
  3. Step 3: Cross multiply
    172,918.08x = 238,686.48 × 101,321.28
  4. Step 4: Simplify right side
    172,918.08x = 24,184,019,672.29
  5. Step 5: Solve for x
    x = 24,184,019,672.29/172,918.08
  6. Step 6: Final answer
    x = 139,858.25

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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.