Home / 209,623.92-289,266.41-118,981.73

Finding the Fourth Proportional to 209,623.92, 289,266.41 and 118,981.73

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Solution

The fourth proportional to 209,623.92, 289,266.41 and 118,981.73 is: 164,186.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,623.92 : 289,266.41 = 118,981.73 : x
  2. Step 2: Convert to fraction form
    209,623.92/289,266.41 = 118,981.73/x
  3. Step 3: Cross multiply
    209,623.92x = 289,266.41 × 118,981.73
  4. Step 4: Simplify right side
    209,623.92x = 34,417,415,851.45
  5. Step 5: Solve for x
    x = 34,417,415,851.45/209,623.92
  6. Step 6: Final answer
    x = 164,186.49

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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.