Home / 108,899.06-150,166.77-86,201.78

Finding the Fourth Proportional to 108,899.06, 150,166.77 and 86,201.78

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Solution

The fourth proportional to 108,899.06, 150,166.77 and 86,201.78 is: 118,868.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,899.06 : 150,166.77 = 86,201.78 : x
  2. Step 2: Convert to fraction form
    108,899.06/150,166.77 = 86,201.78/x
  3. Step 3: Cross multiply
    108,899.06x = 150,166.77 × 86,201.78
  4. Step 4: Simplify right side
    108,899.06x = 12,944,642,870.85
  5. Step 5: Solve for x
    x = 12,944,642,870.85/108,899.06
  6. Step 6: Final answer
    x = 118,868.27

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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.