Home / 91,675.60-136,886.21-82,126.24

Finding the Fourth Proportional to 91,675.60, 136,886.21 and 82,126.24

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Solution

The fourth proportional to 91,675.60, 136,886.21 and 82,126.24 is: 122,627.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,675.60 : 136,886.21 = 82,126.24 : x
  2. Step 2: Convert to fraction form
    91,675.60/136,886.21 = 82,126.24/x
  3. Step 3: Cross multiply
    91,675.60x = 136,886.21 × 82,126.24
  4. Step 4: Simplify right side
    91,675.60x = 11,241,949,735.15
  5. Step 5: Solve for x
    x = 11,241,949,735.15/91,675.60
  6. Step 6: Final answer
    x = 122,627.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.