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Finding the Fourth Proportional to 145,608.54, 200,906.55 and 81,923.10

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Solution

The fourth proportional to 145,608.54, 200,906.55 and 81,923.10 is: 113,035.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,608.54 : 200,906.55 = 81,923.10 : x
  2. Step 2: Convert to fraction form
    145,608.54/200,906.55 = 81,923.10/x
  3. Step 3: Cross multiply
    145,608.54x = 200,906.55 × 81,923.10
  4. Step 4: Simplify right side
    145,608.54x = 16,458,887,386.31
  5. Step 5: Solve for x
    x = 16,458,887,386.31/145,608.54
  6. Step 6: Final answer
    x = 113,035.18

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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.