Home / 197,106.12-295,880.31-78,859.89

Finding the Fourth Proportional to 197,106.12, 295,880.31 and 78,859.89

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Solution

The fourth proportional to 197,106.12, 295,880.31 and 78,859.89 is: 118,378.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,106.12 : 295,880.31 = 78,859.89 : x
  2. Step 2: Convert to fraction form
    197,106.12/295,880.31 = 78,859.89/x
  3. Step 3: Cross multiply
    197,106.12x = 295,880.31 × 78,859.89
  4. Step 4: Simplify right side
    197,106.12x = 23,333,088,699.77
  5. Step 5: Solve for x
    x = 23,333,088,699.77/197,106.12
  6. Step 6: Final answer
    x = 118,378.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.