Home / 209,064.23-288,531.66-117,192.30

Finding the Fourth Proportional to 209,064.23, 288,531.66 and 117,192.30

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Solution

The fourth proportional to 209,064.23, 288,531.66 and 117,192.30 is: 161,738.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,064.23 : 288,531.66 = 117,192.30 : x
  2. Step 2: Convert to fraction form
    209,064.23/288,531.66 = 117,192.30/x
  3. Step 3: Cross multiply
    209,064.23x = 288,531.66 × 117,192.30
  4. Step 4: Simplify right side
    209,064.23x = 33,813,688,858.22
  5. Step 5: Solve for x
    x = 33,813,688,858.22/209,064.23
  6. Step 6: Final answer
    x = 161,738.28

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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.