Home / 196,312.30-270,912.27-111,430.78

Finding the Fourth Proportional to 196,312.30, 270,912.27 and 111,430.78

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Solution

The fourth proportional to 196,312.30, 270,912.27 and 111,430.78 is: 153,775.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,312.30 : 270,912.27 = 111,430.78 : x
  2. Step 2: Convert to fraction form
    196,312.30/270,912.27 = 111,430.78/x
  3. Step 3: Cross multiply
    196,312.30x = 270,912.27 × 111,430.78
  4. Step 4: Simplify right side
    196,312.30x = 30,187,965,557.67
  5. Step 5: Solve for x
    x = 30,187,965,557.67/196,312.30
  6. Step 6: Final answer
    x = 153,775.21

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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.