Home / 166,970.10-230,427.57-91,521.78

Finding the Fourth Proportional to 166,970.10, 230,427.57 and 91,521.78

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Solution

The fourth proportional to 166,970.10, 230,427.57 and 91,521.78 is: 126,304.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,970.10 : 230,427.57 = 91,521.78 : x
  2. Step 2: Convert to fraction form
    166,970.10/230,427.57 = 91,521.78/x
  3. Step 3: Cross multiply
    166,970.10x = 230,427.57 × 91,521.78
  4. Step 4: Simplify right side
    166,970.10x = 21,089,141,367.47
  5. Step 5: Solve for x
    x = 21,089,141,367.47/166,970.10
  6. Step 6: Final answer
    x = 126,304.90

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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.