Home / 121,514.80-181,883.40-112,183.60

Finding the Fourth Proportional to 121,514.80, 181,883.40 and 112,183.60

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Solution

The fourth proportional to 121,514.80, 181,883.40 and 112,183.60 is: 167,916.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,514.80 : 181,883.40 = 112,183.60 : x
  2. Step 2: Convert to fraction form
    121,514.80/181,883.40 = 112,183.60/x
  3. Step 3: Cross multiply
    121,514.80x = 181,883.40 × 112,183.60
  4. Step 4: Simplify right side
    121,514.80x = 20,404,334,592.24
  5. Step 5: Solve for x
    x = 20,404,334,592.24/121,514.80
  6. Step 6: Final answer
    x = 167,916.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.