Home / 120,314.50-166,031.98-66,598.36

Finding the Fourth Proportional to 120,314.50, 166,031.98 and 66,598.36

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Solution

The fourth proportional to 120,314.50, 166,031.98 and 66,598.36 is: 91,904.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,314.50 : 166,031.98 = 66,598.36 : x
  2. Step 2: Convert to fraction form
    120,314.50/166,031.98 = 66,598.36/x
  3. Step 3: Cross multiply
    120,314.50x = 166,031.98 × 66,598.36
  4. Step 4: Simplify right side
    120,314.50x = 11,057,456,993.98
  5. Step 5: Solve for x
    x = 11,057,456,993.98/120,314.50
  6. Step 6: Final answer
    x = 91,904.61

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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.