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Finding the Fourth Proportional to 168,355.16, 232,363.32 and 100,338.08

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Solution

The fourth proportional to 168,355.16, 232,363.32 and 100,338.08 is: 138,486.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,355.16 : 232,363.32 = 100,338.08 : x
  2. Step 2: Convert to fraction form
    168,355.16/232,363.32 = 100,338.08/x
  3. Step 3: Cross multiply
    168,355.16x = 232,363.32 × 100,338.08
  4. Step 4: Simplify right side
    168,355.16x = 23,314,889,391.23
  5. Step 5: Solve for x
    x = 23,314,889,391.23/168,355.16
  6. Step 6: Final answer
    x = 138,486.34

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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.