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Finding the Fourth Proportional to 188,686.89, 260,392.79 and 102,651.23

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Solution

The fourth proportional to 188,686.89, 260,392.79 and 102,651.23 is: 141,661.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,686.89 : 260,392.79 = 102,651.23 : x
  2. Step 2: Convert to fraction form
    188,686.89/260,392.79 = 102,651.23/x
  3. Step 3: Cross multiply
    188,686.89x = 260,392.79 × 102,651.23
  4. Step 4: Simplify right side
    188,686.89x = 26,729,641,084.24
  5. Step 5: Solve for x
    x = 26,729,641,084.24/188,686.89
  6. Step 6: Final answer
    x = 141,661.36

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1.5x scale

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.