Home / 139,186.20-192,077.52-75,523.98

Finding the Fourth Proportional to 139,186.20, 192,077.52 and 75,523.98

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Solution

The fourth proportional to 139,186.20, 192,077.52 and 75,523.98 is: 104,223.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,186.20 : 192,077.52 = 75,523.98 : x
  2. Step 2: Convert to fraction form
    139,186.20/192,077.52 = 75,523.98/x
  3. Step 3: Cross multiply
    139,186.20x = 192,077.52 × 75,523.98
  4. Step 4: Simplify right side
    139,186.20x = 14,506,458,778.93
  5. Step 5: Solve for x
    x = 14,506,458,778.93/139,186.20
  6. Step 6: Final answer
    x = 104,223.40

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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.