Home / 118,981.14-164,222.70-80,804.40

Finding the Fourth Proportional to 118,981.14, 164,222.70 and 80,804.40

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Solution

The fourth proportional to 118,981.14, 164,222.70 and 80,804.40 is: 111,529.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,981.14 : 164,222.70 = 80,804.40 : x
  2. Step 2: Convert to fraction form
    118,981.14/164,222.70 = 80,804.40/x
  3. Step 3: Cross multiply
    118,981.14x = 164,222.70 × 80,804.40
  4. Step 4: Simplify right side
    118,981.14x = 13,269,916,739.88
  5. Step 5: Solve for x
    x = 13,269,916,739.88/118,981.14
  6. Step 6: Final answer
    x = 111,529.58

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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.