Home / 112,599.21-155,384.51-61,611.73

Finding the Fourth Proportional to 112,599.21, 155,384.51 and 61,611.73

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Solution

The fourth proportional to 112,599.21, 155,384.51 and 61,611.73 is: 85,022.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,599.21 : 155,384.51 = 61,611.73 : x
  2. Step 2: Convert to fraction form
    112,599.21/155,384.51 = 61,611.73/x
  3. Step 3: Cross multiply
    112,599.21x = 155,384.51 × 61,611.73
  4. Step 4: Simplify right side
    112,599.21x = 9,573,508,476.30
  5. Step 5: Solve for x
    x = 9,573,508,476.30/112,599.21
  6. Step 6: Final answer
    x = 85,022.87

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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.