Home / 120,003.90-165,604.34-66,292.67

Finding the Fourth Proportional to 120,003.90, 165,604.34 and 66,292.67

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Solution

The fourth proportional to 120,003.90, 165,604.34 and 66,292.67 is: 91,483.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,003.90 : 165,604.34 = 66,292.67 : x
  2. Step 2: Convert to fraction form
    120,003.90/165,604.34 = 66,292.67/x
  3. Step 3: Cross multiply
    120,003.90x = 165,604.34 × 66,292.67
  4. Step 4: Simplify right side
    120,003.90x = 10,978,353,862.19
  5. Step 5: Solve for x
    x = 10,978,353,862.19/120,003.90
  6. Step 6: Final answer
    x = 91,483.31

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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.