Home / 188,931.72-260,749.62-108,357.51

Finding the Fourth Proportional to 188,931.72, 260,749.62 and 108,357.51

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Solution

The fourth proportional to 188,931.72, 260,749.62 and 108,357.51 is: 149,547.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,931.72 : 260,749.62 = 108,357.51 : x
  2. Step 2: Convert to fraction form
    188,931.72/260,749.62 = 108,357.51/x
  3. Step 3: Cross multiply
    188,931.72x = 260,749.62 × 108,357.51
  4. Step 4: Simplify right side
    188,931.72x = 28,254,179,556.65
  5. Step 5: Solve for x
    x = 28,254,179,556.65/188,931.72
  6. Step 6: Final answer
    x = 149,547.04

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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.