Home / 139,968.10-209,951.19-34,786.90

Finding the Fourth Proportional to 139,968.10, 209,951.19 and 34,786.90

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Solution

The fourth proportional to 139,968.10, 209,951.19 and 34,786.90 is: 52,180.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968.10 : 209,951.19 = 34,786.90 : x
  2. Step 2: Convert to fraction form
    139,968.10/209,951.19 = 34,786.90/x
  3. Step 3: Cross multiply
    139,968.10x = 209,951.19 × 34,786.90
  4. Step 4: Simplify right side
    139,968.10x = 7,303,551,051.41
  5. Step 5: Solve for x
    x = 7,303,551,051.41/139,968.10
  6. Step 6: Final answer
    x = 52,180.11

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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.