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Finding the Fourth Proportional to 166,894.51, 230,313.47 and 90,415.09

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Solution

The fourth proportional to 166,894.51, 230,313.47 and 90,415.09 is: 124,772.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,894.51 : 230,313.47 = 90,415.09 : x
  2. Step 2: Convert to fraction form
    166,894.51/230,313.47 = 90,415.09/x
  3. Step 3: Cross multiply
    166,894.51x = 230,313.47 × 90,415.09
  4. Step 4: Simplify right side
    166,894.51x = 20,823,813,118.26
  5. Step 5: Solve for x
    x = 20,823,813,118.26/166,894.51
  6. Step 6: Final answer
    x = 124,772.31

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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.