Home / 91,954.28-137,999.87-68,316.86

Finding the Fourth Proportional to 91,954.28, 137,999.87 and 68,316.86

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Solution

The fourth proportional to 91,954.28, 137,999.87 and 68,316.86 is: 102,526.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,954.28 : 137,999.87 = 68,316.86 : x
  2. Step 2: Convert to fraction form
    91,954.28/137,999.87 = 68,316.86/x
  3. Step 3: Cross multiply
    91,954.28x = 137,999.87 × 68,316.86
  4. Step 4: Simplify right side
    91,954.28x = 9,427,716,767.22
  5. Step 5: Solve for x
    x = 9,427,716,767.22/91,954.28
  6. Step 6: Final answer
    x = 102,526.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.