Home / 209,448.75-289,017.39-118,775.73

Finding the Fourth Proportional to 209,448.75, 289,017.39 and 118,775.73

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Solution

The fourth proportional to 209,448.75, 289,017.39 and 118,775.73 is: 163,898.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,448.75 : 289,017.39 = 118,775.73 : x
  2. Step 2: Convert to fraction form
    209,448.75/289,017.39 = 118,775.73/x
  3. Step 3: Cross multiply
    209,448.75x = 289,017.39 × 118,775.73
  4. Step 4: Simplify right side
    209,448.75x = 34,328,251,479.94
  5. Step 5: Solve for x
    x = 34,328,251,479.94/209,448.75
  6. Step 6: Final answer
    x = 163,898.10

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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.