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Finding the Fourth Proportional to 168,055.04, 231,774.72 and 100,974.08

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Solution

The fourth proportional to 168,055.04, 231,774.72 and 100,974.08 is: 139,259.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,055.04 : 231,774.72 = 100,974.08 : x
  2. Step 2: Convert to fraction form
    168,055.04/231,774.72 = 100,974.08/x
  3. Step 3: Cross multiply
    168,055.04x = 231,774.72 × 100,974.08
  4. Step 4: Simplify right side
    168,055.04x = 23,403,239,119.26
  5. Step 5: Solve for x
    x = 23,403,239,119.26/168,055.04
  6. Step 6: Final answer
    x = 139,259.37

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1.5x scale

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.