Home / 188,964.86-260,767.19-102,921.45

Finding the Fourth Proportional to 188,964.86, 260,767.19 and 102,921.45

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Solution

The fourth proportional to 188,964.86, 260,767.19 and 102,921.45 is: 142,029.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,964.86 : 260,767.19 = 102,921.45 : x
  2. Step 2: Convert to fraction form
    188,964.86/260,767.19 = 102,921.45/x
  3. Step 3: Cross multiply
    188,964.86x = 260,767.19 × 102,921.45
  4. Step 4: Simplify right side
    188,964.86x = 26,838,537,307.23
  5. Step 5: Solve for x
    x = 26,838,537,307.23/188,964.86
  6. Step 6: Final answer
    x = 142,029.25

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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.