Home / 112,215.25-154,860.29-61,917.49

Finding the Fourth Proportional to 112,215.25, 154,860.29 and 61,917.49

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Solution

The fourth proportional to 112,215.25, 154,860.29 and 61,917.49 is: 85,447.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,215.25 : 154,860.29 = 61,917.49 : x
  2. Step 2: Convert to fraction form
    112,215.25/154,860.29 = 61,917.49/x
  3. Step 3: Cross multiply
    112,215.25x = 154,860.29 × 61,917.49
  4. Step 4: Simplify right side
    112,215.25x = 9,588,560,457.47
  5. Step 5: Solve for x
    x = 9,588,560,457.47/112,215.25
  6. Step 6: Final answer
    x = 85,447.93

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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.