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Finding the Fourth Proportional to 166,858.79, 230,265.51 and 90,377.57

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Solution

The fourth proportional to 166,858.79, 230,265.51 and 90,377.57 is: 124,721.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,858.79 : 230,265.51 = 90,377.57 : x
  2. Step 2: Convert to fraction form
    166,858.79/230,265.51 = 90,377.57/x
  3. Step 3: Cross multiply
    166,858.79x = 230,265.51 × 90,377.57
  4. Step 4: Simplify right side
    166,858.79x = 20,810,837,248.61
  5. Step 5: Solve for x
    x = 20,810,837,248.61/166,858.79
  6. Step 6: Final answer
    x = 124,721.25

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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.