Home / 103,436.42-155,029.20-47,199.46

Finding the Fourth Proportional to 103,436.42, 155,029.20 and 47,199.46

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Solution

The fourth proportional to 103,436.42, 155,029.20 and 47,199.46 is: 70,741.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,436.42 : 155,029.20 = 47,199.46 : x
  2. Step 2: Convert to fraction form
    103,436.42/155,029.20 = 47,199.46/x
  3. Step 3: Cross multiply
    103,436.42x = 155,029.20 × 47,199.46
  4. Step 4: Simplify right side
    103,436.42x = 7,317,294,524.23
  5. Step 5: Solve for x
    x = 7,317,294,524.23/103,436.42
  6. Step 6: Final answer
    x = 70,741.95

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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.