Home / 133,391.36-184,146.90-103,108.16

Finding the Fourth Proportional to 133,391.36, 184,146.90 and 103,108.16

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Solution

The fourth proportional to 133,391.36, 184,146.90 and 103,108.16 is: 142,340.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,391.36 : 184,146.90 = 103,108.16 : x
  2. Step 2: Convert to fraction form
    133,391.36/184,146.90 = 103,108.16/x
  3. Step 3: Cross multiply
    133,391.36x = 184,146.90 × 103,108.16
  4. Step 4: Simplify right side
    133,391.36x = 18,987,048,028.70
  5. Step 5: Solve for x
    x = 18,987,048,028.70/133,391.36
  6. Step 6: Final answer
    x = 142,340.91

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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.