Home / 188,966.64-260,779.94-102,928.21

Finding the Fourth Proportional to 188,966.64, 260,779.94 and 102,928.21

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Solution

The fourth proportional to 188,966.64, 260,779.94 and 102,928.21 is: 142,044.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,966.64 : 260,779.94 = 102,928.21 : x
  2. Step 2: Convert to fraction form
    188,966.64/260,779.94 = 102,928.21/x
  3. Step 3: Cross multiply
    188,966.64x = 260,779.94 × 102,928.21
  4. Step 4: Simplify right side
    188,966.64x = 26,841,613,693.36
  5. Step 5: Solve for x
    x = 26,841,613,693.36/188,966.64
  6. Step 6: Final answer
    x = 142,044.19

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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.