Home / 213,442.12-320,197.92-99,703.63

Finding the Fourth Proportional to 213,442.12, 320,197.92 and 99,703.63

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Solution

The fourth proportional to 213,442.12, 320,197.92 and 99,703.63 is: 149,571.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,442.12 : 320,197.92 = 99,703.63 : x
  2. Step 2: Convert to fraction form
    213,442.12/320,197.92 = 99,703.63/x
  3. Step 3: Cross multiply
    213,442.12x = 320,197.92 × 99,703.63
  4. Step 4: Simplify right side
    213,442.12x = 31,924,894,942.45
  5. Step 5: Solve for x
    x = 31,924,894,942.45/213,442.12
  6. Step 6: Final answer
    x = 149,571.67

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1.5x scale

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.