Home / 147,779.20-203,940.18-80,711.20

Finding the Fourth Proportional to 147,779.20, 203,940.18 and 80,711.20

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Solution

The fourth proportional to 147,779.20, 203,940.18 and 80,711.20 is: 111,384.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,779.20 : 203,940.18 = 80,711.20 : x
  2. Step 2: Convert to fraction form
    147,779.20/203,940.18 = 80,711.20/x
  3. Step 3: Cross multiply
    147,779.20x = 203,940.18 × 80,711.20
  4. Step 4: Simplify right side
    147,779.20x = 16,460,256,656.02
  5. Step 5: Solve for x
    x = 16,460,256,656.02/147,779.20
  6. Step 6: Final answer
    x = 111,384.12

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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.