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Finding the Fourth Proportional to 111,138.89, 153,370.67 and 60,150.60

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Solution

The fourth proportional to 111,138.89, 153,370.67 and 60,150.60 is: 83,007.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,138.89 : 153,370.67 = 60,150.60 : x
  2. Step 2: Convert to fraction form
    111,138.89/153,370.67 = 60,150.60/x
  3. Step 3: Cross multiply
    111,138.89x = 153,370.67 × 60,150.60
  4. Step 4: Simplify right side
    111,138.89x = 9,225,337,522.15
  5. Step 5: Solve for x
    x = 9,225,337,522.15/111,138.89
  6. Step 6: Final answer
    x = 83,007.29

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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.