Home / 209,155.88-288,636.95-113,662.58

Finding the Fourth Proportional to 209,155.88, 288,636.95 and 113,662.58

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Solution

The fourth proportional to 209,155.88, 288,636.95 and 113,662.58 is: 156,855.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,155.88 : 288,636.95 = 113,662.58 : x
  2. Step 2: Convert to fraction form
    209,155.88/288,636.95 = 113,662.58/x
  3. Step 3: Cross multiply
    209,155.88x = 288,636.95 × 113,662.58
  4. Step 4: Simplify right side
    209,155.88x = 32,807,219,261.30
  5. Step 5: Solve for x
    x = 32,807,219,261.30/209,155.88
  6. Step 6: Final answer
    x = 156,855.35

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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.