Home / 209,869.40-289,611.32-114,374.04

Finding the Fourth Proportional to 209,869.40, 289,611.32 and 114,374.04

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Solution

The fourth proportional to 209,869.40, 289,611.32 and 114,374.04 is: 157,831.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,869.40 : 289,611.32 = 114,374.04 : x
  2. Step 2: Convert to fraction form
    209,869.40/289,611.32 = 114,374.04/x
  3. Step 3: Cross multiply
    209,869.40x = 289,611.32 × 114,374.04
  4. Step 4: Simplify right side
    209,869.40x = 33,124,016,698.13
  5. Step 5: Solve for x
    x = 33,124,016,698.13/209,869.40
  6. Step 6: Final answer
    x = 157,831.57

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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.