Home / 209,642.28-289,302.60-114,147.24

Finding the Fourth Proportional to 209,642.28, 289,302.60 and 114,147.24

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Solution

The fourth proportional to 209,642.28, 289,302.60 and 114,147.24 is: 157,521.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,642.28 : 289,302.60 = 114,147.24 : x
  2. Step 2: Convert to fraction form
    209,642.28/289,302.60 = 114,147.24/x
  3. Step 3: Cross multiply
    209,642.28x = 289,302.60 × 114,147.24
  4. Step 4: Simplify right side
    209,642.28x = 33,023,093,314.82
  5. Step 5: Solve for x
    x = 33,023,093,314.82/209,642.28
  6. Step 6: Final answer
    x = 157,521.15

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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.