Home / 139,746.20-209,619.30-112,098.20

Finding the Fourth Proportional to 139,746.20, 209,619.30 and 112,098.20

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Solution

The fourth proportional to 139,746.20, 209,619.30 and 112,098.20 is: 168,147.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,746.20 : 209,619.30 = 112,098.20 : x
  2. Step 2: Convert to fraction form
    139,746.20/209,619.30 = 112,098.20/x
  3. Step 3: Cross multiply
    139,746.20x = 209,619.30 × 112,098.20
  4. Step 4: Simplify right side
    139,746.20x = 23,497,946,215.26
  5. Step 5: Solve for x
    x = 23,497,946,215.26/139,746.20
  6. Step 6: Final answer
    x = 168,147.30

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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.