Home / 151,512.10-209,076.85-83,529.64

Finding the Fourth Proportional to 151,512.10, 209,076.85 and 83,529.64

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Solution

The fourth proportional to 151,512.10, 209,076.85 and 83,529.64 is: 115,265.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,512.10 : 209,076.85 = 83,529.64 : x
  2. Step 2: Convert to fraction form
    151,512.10/209,076.85 = 83,529.64/x
  3. Step 3: Cross multiply
    151,512.10x = 209,076.85 × 83,529.64
  4. Step 4: Simplify right side
    151,512.10x = 17,464,114,012.83
  5. Step 5: Solve for x
    x = 17,464,114,012.83/151,512.10
  6. Step 6: Final answer
    x = 115,265.47

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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.