Home / 102,219.13-141,062.40-56,896.14

Finding the Fourth Proportional to 102,219.13, 141,062.40 and 56,896.14

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Solution

The fourth proportional to 102,219.13, 141,062.40 and 56,896.14 is: 78,516.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,219.13 : 141,062.40 = 56,896.14 : x
  2. Step 2: Convert to fraction form
    102,219.13/141,062.40 = 56,896.14/x
  3. Step 3: Cross multiply
    102,219.13x = 141,062.40 × 56,896.14
  4. Step 4: Simplify right side
    102,219.13x = 8,025,906,059.14
  5. Step 5: Solve for x
    x = 8,025,906,059.14/102,219.13
  6. Step 6: Final answer
    x = 78,516.67

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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.