Home / 120,519.50-166,312.32-66,805.34

Finding the Fourth Proportional to 120,519.50, 166,312.32 and 66,805.34

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Solution

The fourth proportional to 120,519.50, 166,312.32 and 66,805.34 is: 92,188.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,519.50 : 166,312.32 = 66,805.34 : x
  2. Step 2: Convert to fraction form
    120,519.50/166,312.32 = 66,805.34/x
  3. Step 3: Cross multiply
    120,519.50x = 166,312.32 × 66,805.34
  4. Step 4: Simplify right side
    120,519.50x = 11,110,551,083.79
  5. Step 5: Solve for x
    x = 11,110,551,083.79/120,519.50
  6. Step 6: Final answer
    x = 92,188.82

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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.