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Finding the Fourth Proportional to 166,671.36, 230,012.28 and 91,220.40

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Solution

The fourth proportional to 166,671.36, 230,012.28 and 91,220.40 is: 125,887.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,671.36 : 230,012.28 = 91,220.40 : x
  2. Step 2: Convert to fraction form
    166,671.36/230,012.28 = 91,220.40/x
  3. Step 3: Cross multiply
    166,671.36x = 230,012.28 × 91,220.40
  4. Step 4: Simplify right side
    166,671.36x = 20,981,812,186.51
  5. Step 5: Solve for x
    x = 20,981,812,186.51/166,671.36
  6. Step 6: Final answer
    x = 125,887.33

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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.