Home / 120,033.43-165,647.86-66,319.67

Finding the Fourth Proportional to 120,033.43, 165,647.86 and 66,319.67

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Solution

The fourth proportional to 120,033.43, 165,647.86 and 66,319.67 is: 91,522.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,033.43 : 165,647.86 = 66,319.67 : x
  2. Step 2: Convert to fraction form
    120,033.43/165,647.86 = 66,319.67/x
  3. Step 3: Cross multiply
    120,033.43x = 165,647.86 × 66,319.67
  4. Step 4: Simplify right side
    120,033.43x = 10,985,711,659.73
  5. Step 5: Solve for x
    x = 10,985,711,659.73/120,033.43
  6. Step 6: Final answer
    x = 91,522.10

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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.