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Finding the Fourth Proportional to 147,779.44, 203,940.48 and 80,711.44

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Solution

The fourth proportional to 147,779.44, 203,940.48 and 80,711.44 is: 111,384.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,779.44 : 203,940.48 = 80,711.44 : x
  2. Step 2: Convert to fraction form
    147,779.44/203,940.48 = 80,711.44/x
  3. Step 3: Cross multiply
    147,779.44x = 203,940.48 × 80,711.44
  4. Step 4: Simplify right side
    147,779.44x = 16,460,329,607.91
  5. Step 5: Solve for x
    x = 16,460,329,607.91/147,779.44
  6. Step 6: Final answer
    x = 111,384.44

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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.