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Finding the Fourth Proportional to 145,625.94, 200,908.94 and 85,177.26

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Solution

The fourth proportional to 145,625.94, 200,908.94 and 85,177.26 is: 117,512.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,625.94 : 200,908.94 = 85,177.26 : x
  2. Step 2: Convert to fraction form
    145,625.94/200,908.94 = 85,177.26/x
  3. Step 3: Cross multiply
    145,625.94x = 200,908.94 × 85,177.26
  4. Step 4: Simplify right side
    145,625.94x = 17,112,873,018.70
  5. Step 5: Solve for x
    x = 17,112,873,018.70/145,625.94
  6. Step 6: Final answer
    x = 117,512.53

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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.