Home / 91,935.18-126,885.32-85,931.86

Finding the Fourth Proportional to 91,935.18, 126,885.32 and 85,931.86

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Solution

The fourth proportional to 91,935.18, 126,885.32 and 85,931.86 is: 118,599.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,935.18 : 126,885.32 = 85,931.86 : x
  2. Step 2: Convert to fraction form
    91,935.18/126,885.32 = 85,931.86/x
  3. Step 3: Cross multiply
    91,935.18x = 126,885.32 × 85,931.86
  4. Step 4: Simplify right side
    91,935.18x = 10,903,491,554.30
  5. Step 5: Solve for x
    x = 10,903,491,554.30/91,935.18
  6. Step 6: Final answer
    x = 118,599.77

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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.