Home / 111,922.37-154,448.20-61,618.13

Finding the Fourth Proportional to 111,922.37, 154,448.20 and 61,618.13

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Solution

The fourth proportional to 111,922.37, 154,448.20 and 61,618.13 is: 85,030.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,922.37 : 154,448.20 = 61,618.13 : x
  2. Step 2: Convert to fraction form
    111,922.37/154,448.20 = 61,618.13/x
  3. Step 3: Cross multiply
    111,922.37x = 154,448.20 × 61,618.13
  4. Step 4: Simplify right side
    111,922.37x = 9,516,809,265.87
  5. Step 5: Solve for x
    x = 9,516,809,265.87/111,922.37
  6. Step 6: Final answer
    x = 85,030.45

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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.