Home / 209,810.12-289,534.32-114,317.60

Finding the Fourth Proportional to 209,810.12, 289,534.32 and 114,317.60

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Solution

The fourth proportional to 209,810.12, 289,534.32 and 114,317.60 is: 157,756.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,810.12 : 289,534.32 = 114,317.60 : x
  2. Step 2: Convert to fraction form
    209,810.12/289,534.32 = 114,317.60/x
  3. Step 3: Cross multiply
    209,810.12x = 289,534.32 × 114,317.60
  4. Step 4: Simplify right side
    209,810.12x = 33,098,868,580.03
  5. Step 5: Solve for x
    x = 33,098,868,580.03/209,810.12
  6. Step 6: Final answer
    x = 157,756.30

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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.