Home / 209,640.02-289,303.58-114,147.09

Finding the Fourth Proportional to 209,640.02, 289,303.58 and 114,147.09

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Solution

The fourth proportional to 209,640.02, 289,303.58 and 114,147.09 is: 157,523.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,640.02 : 289,303.58 = 114,147.09 : x
  2. Step 2: Convert to fraction form
    209,640.02/289,303.58 = 114,147.09/x
  3. Step 3: Cross multiply
    209,640.02x = 289,303.58 × 114,147.09
  4. Step 4: Simplify right side
    209,640.02x = 33,023,162,068.95
  5. Step 5: Solve for x
    x = 33,023,162,068.95/209,640.02
  6. Step 6: Final answer
    x = 157,523.18

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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.