Home / 196,869.60-295,304.40-78,559.20

Finding the Fourth Proportional to 196,869.60, 295,304.40 and 78,559.20

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Solution

The fourth proportional to 196,869.60, 295,304.40 and 78,559.20 is: 117,838.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,869.60 : 295,304.40 = 78,559.20 : x
  2. Step 2: Convert to fraction form
    196,869.60/295,304.40 = 78,559.20/x
  3. Step 3: Cross multiply
    196,869.60x = 295,304.40 × 78,559.20
  4. Step 4: Simplify right side
    196,869.60x = 23,198,877,420.48
  5. Step 5: Solve for x
    x = 23,198,877,420.48/196,869.60
  6. Step 6: Final answer
    x = 117,838.80

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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.