Home / 188,216.10-260,111.52-154,170.63

Finding the Fourth Proportional to 188,216.10, 260,111.52 and 154,170.63

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Solution

The fourth proportional to 188,216.10, 260,111.52 and 154,170.63 is: 213,061.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,216.10 : 260,111.52 = 154,170.63 : x
  2. Step 2: Convert to fraction form
    188,216.10/260,111.52 = 154,170.63/x
  3. Step 3: Cross multiply
    188,216.10x = 260,111.52 × 154,170.63
  4. Step 4: Simplify right side
    188,216.10x = 40,101,556,908.66
  5. Step 5: Solve for x
    x = 40,101,556,908.66/188,216.10
  6. Step 6: Final answer
    x = 213,061.25

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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.