Home / 188,664.20-260,355.14-103,779.40

Finding the Fourth Proportional to 188,664.20, 260,355.14 and 103,779.40

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Solution

The fourth proportional to 188,664.20, 260,355.14 and 103,779.40 is: 143,214.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,664.20 : 260,355.14 = 103,779.40 : x
  2. Step 2: Convert to fraction form
    188,664.20/260,355.14 = 103,779.40/x
  3. Step 3: Cross multiply
    188,664.20x = 260,355.14 × 103,779.40
  4. Step 4: Simplify right side
    188,664.20x = 27,019,500,216.12
  5. Step 5: Solve for x
    x = 27,019,500,216.12/188,664.20
  6. Step 6: Final answer
    x = 143,214.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.