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Finding the Fourth Proportional to 101,147.46, 139,582.81 and 55,825.44

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Solution

The fourth proportional to 101,147.46, 139,582.81 and 55,825.44 is: 77,038.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,147.46 : 139,582.81 = 55,825.44 : x
  2. Step 2: Convert to fraction form
    101,147.46/139,582.81 = 55,825.44/x
  3. Step 3: Cross multiply
    101,147.46x = 139,582.81 × 55,825.44
  4. Step 4: Simplify right side
    101,147.46x = 7,792,271,784.69
  5. Step 5: Solve for x
    x = 7,792,271,784.69/101,147.46
  6. Step 6: Final answer
    x = 77,038.73

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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.