Home / 91,193.45-125,785.51-79,236.23

Finding the Fourth Proportional to 91,193.45, 125,785.51 and 79,236.23

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Solution

The fourth proportional to 91,193.45, 125,785.51 and 79,236.23 is: 109,292.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,193.45 : 125,785.51 = 79,236.23 : x
  2. Step 2: Convert to fraction form
    91,193.45/125,785.51 = 79,236.23/x
  3. Step 3: Cross multiply
    91,193.45x = 125,785.51 × 79,236.23
  4. Step 4: Simplify right side
    91,193.45x = 9,966,768,774.01
  5. Step 5: Solve for x
    x = 9,966,768,774.01/91,193.45
  6. Step 6: Final answer
    x = 109,292.60

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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.