Home / 103,680.62-155,271.76-59,172.43

Finding the Fourth Proportional to 103,680.62, 155,271.76 and 59,172.43

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Solution

The fourth proportional to 103,680.62, 155,271.76 and 59,172.43 is: 88,616.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,680.62 : 155,271.76 = 59,172.43 : x
  2. Step 2: Convert to fraction form
    103,680.62/155,271.76 = 59,172.43/x
  3. Step 3: Cross multiply
    103,680.62x = 155,271.76 × 59,172.43
  4. Step 4: Simplify right side
    103,680.62x = 9,187,807,349.58
  5. Step 5: Solve for x
    x = 9,187,807,349.58/103,680.62
  6. Step 6: Final answer
    x = 88,616.44

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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.