Home / 98,144.18-147,216.32-31,584.30

Finding the Fourth Proportional to 98,144.18, 147,216.32 and 31,584.30

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Solution

The fourth proportional to 98,144.18, 147,216.32 and 31,584.30 is: 47,376.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,144.18 : 147,216.32 = 31,584.30 : x
  2. Step 2: Convert to fraction form
    98,144.18/147,216.32 = 31,584.30/x
  3. Step 3: Cross multiply
    98,144.18x = 147,216.32 × 31,584.30
  4. Step 4: Simplify right side
    98,144.18x = 4,649,724,257.85
  5. Step 5: Solve for x
    x = 4,649,724,257.85/98,144.18
  6. Step 6: Final answer
    x = 47,376.47

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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.