Home / 255,181.06-382,912.53-105,386.50

Finding the Fourth Proportional to 255,181.06, 382,912.53 and 105,386.50

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Solution

The fourth proportional to 255,181.06, 382,912.53 and 105,386.50 is: 158,137.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,181.06 : 382,912.53 = 105,386.50 : x
  2. Step 2: Convert to fraction form
    255,181.06/382,912.53 = 105,386.50/x
  3. Step 3: Cross multiply
    255,181.06x = 382,912.53 × 105,386.50
  4. Step 4: Simplify right side
    255,181.06x = 40,353,811,342.85
  5. Step 5: Solve for x
    x = 40,353,811,342.85/255,181.06
  6. Step 6: Final answer
    x = 158,137.96

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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.