Home / 105,515.89-145,611.54-60,193.80

Finding the Fourth Proportional to 105,515.89, 145,611.54 and 60,193.80

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Solution

The fourth proportional to 105,515.89, 145,611.54 and 60,193.80 is: 83,067.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,515.89 : 145,611.54 = 60,193.80 : x
  2. Step 2: Convert to fraction form
    105,515.89/145,611.54 = 60,193.80/x
  3. Step 3: Cross multiply
    105,515.89x = 145,611.54 × 60,193.80
  4. Step 4: Simplify right side
    105,515.89x = 8,764,911,916.45
  5. Step 5: Solve for x
    x = 8,764,911,916.45/105,515.89
  6. Step 6: Final answer
    x = 83,067.22

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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.