Home / 91,934.94-126,884.97-85,931.61

Finding the Fourth Proportional to 91,934.94, 126,884.97 and 85,931.61

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Solution

The fourth proportional to 91,934.94, 126,884.97 and 85,931.61 is: 118,599.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,934.94 : 126,884.97 = 85,931.61 : x
  2. Step 2: Convert to fraction form
    91,934.94/126,884.97 = 85,931.61/x
  3. Step 3: Cross multiply
    91,934.94x = 126,884.97 × 85,931.61
  4. Step 4: Simplify right side
    91,934.94x = 10,903,429,756.90
  5. Step 5: Solve for x
    x = 10,903,429,756.90/91,934.94
  6. Step 6: Final answer
    x = 118,599.41

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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.