Home / 122,043.72-168,333.48-112,004.56

Finding the Fourth Proportional to 122,043.72, 168,333.48 and 112,004.56

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Solution

The fourth proportional to 122,043.72, 168,333.48 and 112,004.56 is: 154,486.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,043.72 : 168,333.48 = 112,004.56 : x
  2. Step 2: Convert to fraction form
    122,043.72/168,333.48 = 112,004.56/x
  3. Step 3: Cross multiply
    122,043.72x = 168,333.48 × 112,004.56
  4. Step 4: Simplify right side
    122,043.72x = 18,854,117,360.67
  5. Step 5: Solve for x
    x = 18,854,117,360.67/122,043.72
  6. Step 6: Final answer
    x = 154,486.58

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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.