Home / 209,179.84-288,670.41-113,686.54

Finding the Fourth Proportional to 209,179.84, 288,670.41 and 113,686.54

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Solution

The fourth proportional to 209,179.84, 288,670.41 and 113,686.54 is: 156,888.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,179.84 : 288,670.41 = 113,686.54 : x
  2. Step 2: Convert to fraction form
    209,179.84/288,670.41 = 113,686.54/x
  3. Step 3: Cross multiply
    209,179.84x = 288,670.41 × 113,686.54
  4. Step 4: Simplify right side
    209,179.84x = 32,817,940,113.28
  5. Step 5: Solve for x
    x = 32,817,940,113.28/209,179.84
  6. Step 6: Final answer
    x = 156,888.64

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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.