Home / 209,538.06-289,130.36-117,662.10

Finding the Fourth Proportional to 209,538.06, 289,130.36 and 117,662.10

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Solution

The fourth proportional to 209,538.06, 289,130.36 and 117,662.10 is: 162,355.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,538.06 : 289,130.36 = 117,662.10 : x
  2. Step 2: Convert to fraction form
    209,538.06/289,130.36 = 117,662.10/x
  3. Step 3: Cross multiply
    209,538.06x = 289,130.36 × 117,662.10
  4. Step 4: Simplify right side
    209,538.06x = 34,019,685,331.36
  5. Step 5: Solve for x
    x = 34,019,685,331.36/209,538.06
  6. Step 6: Final answer
    x = 162,355.64

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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.