Home / 209,579.09-289,219.18-114,086.51

Finding the Fourth Proportional to 209,579.09, 289,219.18 and 114,086.51

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Solution

The fourth proportional to 209,579.09, 289,219.18 and 114,086.51 is: 157,439.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,579.09 : 289,219.18 = 114,086.51 : x
  2. Step 2: Convert to fraction form
    209,579.09/289,219.18 = 114,086.51/x
  3. Step 3: Cross multiply
    209,579.09x = 289,219.18 × 114,086.51
  4. Step 4: Simplify right side
    209,579.09x = 32,996,006,871.26
  5. Step 5: Solve for x
    x = 32,996,006,871.26/209,579.09
  6. Step 6: Final answer
    x = 157,439.40

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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.