Home / 209,121.07-288,588.83-113,627.77

Finding the Fourth Proportional to 209,121.07, 288,588.83 and 113,627.77

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Solution

The fourth proportional to 209,121.07, 288,588.83 and 113,627.77 is: 156,807.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,121.07 : 288,588.83 = 113,627.77 : x
  2. Step 2: Convert to fraction form
    209,121.07/288,588.83 = 113,627.77/x
  3. Step 3: Cross multiply
    209,121.07x = 288,588.83 × 113,627.77
  4. Step 4: Simplify right side
    209,121.07x = 32,791,705,199.81
  5. Step 5: Solve for x
    x = 32,791,705,199.81/209,121.07
  6. Step 6: Final answer
    x = 156,807.28

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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.