Home / 112,384.70-168,771.45-73,115.90

Finding the Fourth Proportional to 112,384.70, 168,771.45 and 73,115.90

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Solution

The fourth proportional to 112,384.70, 168,771.45 and 73,115.90 is: 109,800.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,384.70 : 168,771.45 = 73,115.90 : x
  2. Step 2: Convert to fraction form
    112,384.70/168,771.45 = 73,115.90/x
  3. Step 3: Cross multiply
    112,384.70x = 168,771.45 × 73,115.90
  4. Step 4: Simplify right side
    112,384.70x = 12,339,876,461.06
  5. Step 5: Solve for x
    x = 12,339,876,461.06/112,384.70
  6. Step 6: Final answer
    x = 109,800.32

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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.