Home / 209,820.12-289,548.12-114,327.60

Finding the Fourth Proportional to 209,820.12, 289,548.12 and 114,327.60

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Solution

The fourth proportional to 209,820.12, 289,548.12 and 114,327.60 is: 157,770.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,820.12 : 289,548.12 = 114,327.60 : x
  2. Step 2: Convert to fraction form
    209,820.12/289,548.12 = 114,327.60/x
  3. Step 3: Cross multiply
    209,820.12x = 289,548.12 × 114,327.60
  4. Step 4: Simplify right side
    209,820.12x = 33,103,341,644.11
  5. Step 5: Solve for x
    x = 33,103,341,644.11/209,820.12
  6. Step 6: Final answer
    x = 157,770.10

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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.