Home / 109,474.40-164,211.60-39,360.80

Finding the Fourth Proportional to 109,474.40, 164,211.60 and 39,360.80

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Solution

The fourth proportional to 109,474.40, 164,211.60 and 39,360.80 is: 59,041.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,474.40 : 164,211.60 = 39,360.80 : x
  2. Step 2: Convert to fraction form
    109,474.40/164,211.60 = 39,360.80/x
  3. Step 3: Cross multiply
    109,474.40x = 164,211.60 × 39,360.80
  4. Step 4: Simplify right side
    109,474.40x = 6,463,499,945.28
  5. Step 5: Solve for x
    x = 6,463,499,945.28/109,474.40
  6. Step 6: Final answer
    x = 59,041.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.