Home / 112,028.60-154,597.74-61,729.40

Finding the Fourth Proportional to 112,028.60, 154,597.74 and 61,729.40

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Solution

The fourth proportional to 112,028.60, 154,597.74 and 61,729.40 is: 85,185.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,028.60 : 154,597.74 = 61,729.40 : x
  2. Step 2: Convert to fraction form
    112,028.60/154,597.74 = 61,729.40/x
  3. Step 3: Cross multiply
    112,028.60x = 154,597.74 × 61,729.40
  4. Step 4: Simplify right side
    112,028.60x = 9,543,225,731.56
  5. Step 5: Solve for x
    x = 9,543,225,731.56/112,028.60
  6. Step 6: Final answer
    x = 85,185.62

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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.