Home / 196,870.40-295,111.20-78,383.60

Finding the Fourth Proportional to 196,870.40, 295,111.20 and 78,383.60

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Solution

The fourth proportional to 196,870.40, 295,111.20 and 78,383.60 is: 117,498.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,870.40 : 295,111.20 = 78,383.60 : x
  2. Step 2: Convert to fraction form
    196,870.40/295,111.20 = 78,383.60/x
  3. Step 3: Cross multiply
    196,870.40x = 295,111.20 × 78,383.60
  4. Step 4: Simplify right side
    196,870.40x = 23,131,878,256.32
  5. Step 5: Solve for x
    x = 23,131,878,256.32/196,870.40
  6. Step 6: Final answer
    x = 117,498.00

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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.