Home / 209,685.12-289,370.64-114,196.98

Finding the Fourth Proportional to 209,685.12, 289,370.64 and 114,196.98

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Solution

The fourth proportional to 209,685.12, 289,370.64 and 114,196.98 is: 157,594.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,685.12 : 289,370.64 = 114,196.98 : x
  2. Step 2: Convert to fraction form
    209,685.12/289,370.64 = 114,196.98/x
  3. Step 3: Cross multiply
    209,685.12x = 289,370.64 × 114,196.98
  4. Step 4: Simplify right side
    209,685.12x = 33,045,253,188.67
  5. Step 5: Solve for x
    x = 33,045,253,188.67/209,685.12
  6. Step 6: Final answer
    x = 157,594.65

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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.