Home / 133,319.36-183,512.64-120,722.24

Finding the Fourth Proportional to 133,319.36, 183,512.64 and 120,722.24

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Solution

The fourth proportional to 133,319.36, 183,512.64 and 120,722.24 is: 166,172.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,319.36 : 183,512.64 = 120,722.24 : x
  2. Step 2: Convert to fraction form
    133,319.36/183,512.64 = 120,722.24/x
  3. Step 3: Cross multiply
    133,319.36x = 183,512.64 × 120,722.24
  4. Step 4: Simplify right side
    133,319.36x = 22,154,056,969.11
  5. Step 5: Solve for x
    x = 22,154,056,969.11/133,319.36
  6. Step 6: Final answer
    x = 166,172.84

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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.