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Finding the Fourth Proportional to 100,041.40, 149,975.70 and 60,556.60

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Solution

The fourth proportional to 100,041.40, 149,975.70 and 60,556.60 is: 90,782.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,041.40 : 149,975.70 = 60,556.60 : x
  2. Step 2: Convert to fraction form
    100,041.40/149,975.70 = 60,556.60/x
  3. Step 3: Cross multiply
    100,041.40x = 149,975.70 × 60,556.60
  4. Step 4: Simplify right side
    100,041.40x = 9,082,018,474.62
  5. Step 5: Solve for x
    x = 9,082,018,474.62/100,041.40
  6. Step 6: Final answer
    x = 90,782.60

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1.5x scale

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.