Home / 108,730.20-163,095.30-99,544.80

Finding the Fourth Proportional to 108,730.20, 163,095.30 and 99,544.80

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Solution

The fourth proportional to 108,730.20, 163,095.30 and 99,544.80 is: 149,317.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,730.20 : 163,095.30 = 99,544.80 : x
  2. Step 2: Convert to fraction form
    108,730.20/163,095.30 = 99,544.80/x
  3. Step 3: Cross multiply
    108,730.20x = 163,095.30 × 99,544.80
  4. Step 4: Simplify right side
    108,730.20x = 16,235,289,019.44
  5. Step 5: Solve for x
    x = 16,235,289,019.44/108,730.20
  6. Step 6: Final answer
    x = 149,317.20

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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.