Home / 209,657.45-289,251.30-118,960.89

Finding the Fourth Proportional to 209,657.45, 289,251.30 and 118,960.89

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Solution

The fourth proportional to 209,657.45, 289,251.30 and 118,960.89 is: 164,122.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,657.45 : 289,251.30 = 118,960.89 : x
  2. Step 2: Convert to fraction form
    209,657.45/289,251.30 = 118,960.89/x
  3. Step 3: Cross multiply
    209,657.45x = 289,251.30 × 118,960.89
  4. Step 4: Simplify right side
    209,657.45x = 34,409,590,040.60
  5. Step 5: Solve for x
    x = 34,409,590,040.60/209,657.45
  6. Step 6: Final answer
    x = 164,122.91

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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.