Home / 112,216.13-154,861.49-61,918.37

Finding the Fourth Proportional to 112,216.13, 154,861.49 and 61,918.37

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Solution

The fourth proportional to 112,216.13, 154,861.49 and 61,918.37 is: 85,449.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,216.13 : 154,861.49 = 61,918.37 : x
  2. Step 2: Convert to fraction form
    112,216.13/154,861.49 = 61,918.37/x
  3. Step 3: Cross multiply
    112,216.13x = 154,861.49 × 61,918.37
  4. Step 4: Simplify right side
    112,216.13x = 9,588,770,417.06
  5. Step 5: Solve for x
    x = 9,588,770,417.06/112,216.13
  6. Step 6: Final answer
    x = 85,449.13

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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.