Home / 209,642.15-289,347.12-133,250.24

Finding the Fourth Proportional to 209,642.15, 289,347.12 and 133,250.24

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Solution

The fourth proportional to 209,642.15, 289,347.12 and 133,250.24 is: 183,911.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,642.15 : 289,347.12 = 133,250.24 : x
  2. Step 2: Convert to fraction form
    209,642.15/289,347.12 = 133,250.24/x
  3. Step 3: Cross multiply
    209,642.15x = 289,347.12 × 133,250.24
  4. Step 4: Simplify right side
    209,642.15x = 38,555,571,736.57
  5. Step 5: Solve for x
    x = 38,555,571,736.57/209,642.15
  6. Step 6: Final answer
    x = 183,911.36

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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.