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Finding the Fourth Proportional to 119,450.40, 164,851.20 and 65,745.60

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Solution

The fourth proportional to 119,450.40, 164,851.20 and 65,745.60 is: 90,734.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,450.40 : 164,851.20 = 65,745.60 : x
  2. Step 2: Convert to fraction form
    119,450.40/164,851.20 = 65,745.60/x
  3. Step 3: Cross multiply
    119,450.40x = 164,851.20 × 65,745.60
  4. Step 4: Simplify right side
    119,450.40x = 10,838,241,054.72
  5. Step 5: Solve for x
    x = 10,838,241,054.72/119,450.40
  6. Step 6: Final answer
    x = 90,734.24

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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.