Home / 111,827.52-154,370.40-79,941.12

Finding the Fourth Proportional to 111,827.52, 154,370.40 and 79,941.12

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Solution

The fourth proportional to 111,827.52, 154,370.40 and 79,941.12 is: 110,353.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,827.52 : 154,370.40 = 79,941.12 : x
  2. Step 2: Convert to fraction form
    111,827.52/154,370.40 = 79,941.12/x
  3. Step 3: Cross multiply
    111,827.52x = 154,370.40 × 79,941.12
  4. Step 4: Simplify right side
    111,827.52x = 12,340,542,670.85
  5. Step 5: Solve for x
    x = 12,340,542,670.85/111,827.52
  6. Step 6: Final answer
    x = 110,353.36

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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.