Home / 120,771.04-166,630.32-75,495.12

Finding the Fourth Proportional to 120,771.04, 166,630.32 and 75,495.12

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Solution

The fourth proportional to 120,771.04, 166,630.32 and 75,495.12 is: 104,162.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,771.04 : 166,630.32 = 75,495.12 : x
  2. Step 2: Convert to fraction form
    120,771.04/166,630.32 = 75,495.12/x
  3. Step 3: Cross multiply
    120,771.04x = 166,630.32 × 75,495.12
  4. Step 4: Simplify right side
    120,771.04x = 12,579,776,004.04
  5. Step 5: Solve for x
    x = 12,579,776,004.04/120,771.04
  6. Step 6: Final answer
    x = 104,162.19

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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.