Home / 209,630.26-289,296.80-117,765.66

Finding the Fourth Proportional to 209,630.26, 289,296.80 and 117,765.66

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Solution

The fourth proportional to 209,630.26, 289,296.80 and 117,765.66 is: 162,520.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,630.26 : 289,296.80 = 117,765.66 : x
  2. Step 2: Convert to fraction form
    209,630.26/289,296.80 = 117,765.66/x
  3. Step 3: Cross multiply
    209,630.26x = 289,296.80 × 117,765.66
  4. Step 4: Simplify right side
    209,630.26x = 34,069,228,587.89
  5. Step 5: Solve for x
    x = 34,069,228,587.89/209,630.26
  6. Step 6: Final answer
    x = 162,520.57

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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.