Home / 228,106.72-342,138.12-70,292.80

Finding the Fourth Proportional to 228,106.72, 342,138.12 and 70,292.80

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Solution

The fourth proportional to 228,106.72, 342,138.12 and 70,292.80 is: 105,432.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,106.72 : 342,138.12 = 70,292.80 : x
  2. Step 2: Convert to fraction form
    228,106.72/342,138.12 = 70,292.80/x
  3. Step 3: Cross multiply
    228,106.72x = 342,138.12 × 70,292.80
  4. Step 4: Simplify right side
    228,106.72x = 24,049,846,441.54
  5. Step 5: Solve for x
    x = 24,049,846,441.54/228,106.72
  6. Step 6: Final answer
    x = 105,432.43

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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.