Home / 166,837.40-230,234.56-90,355.28

Finding the Fourth Proportional to 166,837.40, 230,234.56 and 90,355.28

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Solution

The fourth proportional to 166,837.40, 230,234.56 and 90,355.28 is: 124,689.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,837.40 : 230,234.56 = 90,355.28 : x
  2. Step 2: Convert to fraction form
    166,837.40/230,234.56 = 90,355.28/x
  3. Step 3: Cross multiply
    166,837.40x = 230,234.56 × 90,355.28
  4. Step 4: Simplify right side
    166,837.40x = 20,802,908,134.48
  5. Step 5: Solve for x
    x = 20,802,908,134.48/166,837.40
  6. Step 6: Final answer
    x = 124,689.72

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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.