Home / 144,441.70-199,328.88-80,779.76

Finding the Fourth Proportional to 144,441.70, 199,328.88 and 80,779.76

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Solution

The fourth proportional to 144,441.70, 199,328.88 and 80,779.76 is: 111,475.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,441.70 : 199,328.88 = 80,779.76 : x
  2. Step 2: Convert to fraction form
    144,441.70/199,328.88 = 80,779.76/x
  3. Step 3: Cross multiply
    144,441.70x = 199,328.88 × 80,779.76
  4. Step 4: Simplify right side
    144,441.70x = 16,101,739,087.47
  5. Step 5: Solve for x
    x = 16,101,739,087.47/144,441.70
  6. Step 6: Final answer
    x = 111,475.70

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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.