Home / 209,817.12-289,543.98-114,324.60

Finding the Fourth Proportional to 209,817.12, 289,543.98 and 114,324.60

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Solution

The fourth proportional to 209,817.12, 289,543.98 and 114,324.60 is: 157,765.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,817.12 : 289,543.98 = 114,324.60 : x
  2. Step 2: Convert to fraction form
    209,817.12/289,543.98 = 114,324.60/x
  3. Step 3: Cross multiply
    209,817.12x = 289,543.98 × 114,324.60
  4. Step 4: Simplify right side
    209,817.12x = 33,101,999,695.91
  5. Step 5: Solve for x
    x = 33,101,999,695.91/209,817.12
  6. Step 6: Final answer
    x = 157,765.96

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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.