Home / 209,150.05-288,625.69-113,656.74

Finding the Fourth Proportional to 209,150.05, 288,625.69 and 113,656.74

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Solution

The fourth proportional to 209,150.05, 288,625.69 and 113,656.74 is: 156,845.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,150.05 : 288,625.69 = 113,656.74 : x
  2. Step 2: Convert to fraction form
    209,150.05/288,625.69 = 113,656.74/x
  3. Step 3: Cross multiply
    209,150.05x = 288,625.69 × 113,656.74
  4. Step 4: Simplify right side
    209,150.05x = 32,804,255,005.65
  5. Step 5: Solve for x
    x = 32,804,255,005.65/209,150.05
  6. Step 6: Final answer
    x = 156,845.55

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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.