Home / 114,930.72-158,514.40-78,653.64

Finding the Fourth Proportional to 114,930.72, 158,514.40 and 78,653.64

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Solution

The fourth proportional to 114,930.72, 158,514.40 and 78,653.64 is: 108,480.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,930.72 : 158,514.40 = 78,653.64 : x
  2. Step 2: Convert to fraction form
    114,930.72/158,514.40 = 78,653.64/x
  3. Step 3: Cross multiply
    114,930.72x = 158,514.40 × 78,653.64
  4. Step 4: Simplify right side
    114,930.72x = 12,467,734,552.42
  5. Step 5: Solve for x
    x = 12,467,734,552.42/114,930.72
  6. Step 6: Final answer
    x = 108,480.44

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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.