Home / 112,203.84-154,830.56-61,899.60

Finding the Fourth Proportional to 112,203.84, 154,830.56 and 61,899.60

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Solution

The fourth proportional to 112,203.84, 154,830.56 and 61,899.60 is: 85,415.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,203.84 : 154,830.56 = 61,899.60 : x
  2. Step 2: Convert to fraction form
    112,203.84/154,830.56 = 61,899.60/x
  3. Step 3: Cross multiply
    112,203.84x = 154,830.56 × 61,899.60
  4. Step 4: Simplify right side
    112,203.84x = 9,583,949,731.78
  5. Step 5: Solve for x
    x = 9,583,949,731.78/112,203.84
  6. Step 6: Final answer
    x = 85,415.52

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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.