Home / 209,448.30-289,039.92-113,955.70

Finding the Fourth Proportional to 209,448.30, 289,039.92 and 113,955.70

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Solution

The fourth proportional to 209,448.30, 289,039.92 and 113,955.70 is: 157,259.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,448.30 : 289,039.92 = 113,955.70 : x
  2. Step 2: Convert to fraction form
    209,448.30/289,039.92 = 113,955.70/x
  3. Step 3: Cross multiply
    209,448.30x = 289,039.92 × 113,955.70
  4. Step 4: Simplify right side
    209,448.30x = 32,937,746,411.54
  5. Step 5: Solve for x
    x = 32,937,746,411.54/209,448.30
  6. Step 6: Final answer
    x = 157,259.55

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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.