Home / 209,184.18-288,676.44-113,690.90

Finding the Fourth Proportional to 209,184.18, 288,676.44 and 113,690.90

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Solution

The fourth proportional to 209,184.18, 288,676.44 and 113,690.90 is: 156,894.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,184.18 : 288,676.44 = 113,690.90 : x
  2. Step 2: Convert to fraction form
    209,184.18/288,676.44 = 113,690.90/x
  3. Step 3: Cross multiply
    209,184.18x = 288,676.44 × 113,690.90
  4. Step 4: Simplify right side
    209,184.18x = 32,819,884,272.40
  5. Step 5: Solve for x
    x = 32,819,884,272.40/209,184.18
  6. Step 6: Final answer
    x = 156,894.68

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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.