Home / 209,655.09-289,329.21-114,166.98

Finding the Fourth Proportional to 209,655.09, 289,329.21 and 114,166.98

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Solution

The fourth proportional to 209,655.09, 289,329.21 and 114,166.98 is: 157,553.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,655.09 : 289,329.21 = 114,166.98 : x
  2. Step 2: Convert to fraction form
    209,655.09/289,329.21 = 114,166.98/x
  3. Step 3: Cross multiply
    209,655.09x = 289,329.21 × 114,166.98
  4. Step 4: Simplify right side
    209,655.09x = 33,031,842,131.49
  5. Step 5: Solve for x
    x = 33,031,842,131.49/209,655.09
  6. Step 6: Final answer
    x = 157,553.26

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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.