Home / 112,270.70-168,450.60-45,715.70

Finding the Fourth Proportional to 112,270.70, 168,450.60 and 45,715.70

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Solution

The fourth proportional to 112,270.70, 168,450.60 and 45,715.70 is: 68,591.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,270.70 : 168,450.60 = 45,715.70 : x
  2. Step 2: Convert to fraction form
    112,270.70/168,450.60 = 45,715.70/x
  3. Step 3: Cross multiply
    112,270.70x = 168,450.60 × 45,715.70
  4. Step 4: Simplify right side
    112,270.70x = 7,700,837,094.42
  5. Step 5: Solve for x
    x = 7,700,837,094.42/112,270.70
  6. Step 6: Final answer
    x = 68,591.69

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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.