Home / 144,114.10-198,856.89-80,450.50

Finding the Fourth Proportional to 144,114.10, 198,856.89 and 80,450.50

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Solution

The fourth proportional to 144,114.10, 198,856.89 and 80,450.50 is: 111,010.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,114.10 : 198,856.89 = 80,450.50 : x
  2. Step 2: Convert to fraction form
    144,114.10/198,856.89 = 80,450.50/x
  3. Step 3: Cross multiply
    144,114.10x = 198,856.89 × 80,450.50
  4. Step 4: Simplify right side
    144,114.10x = 15,998,136,228.95
  5. Step 5: Solve for x
    x = 15,998,136,228.95/144,114.10
  6. Step 6: Final answer
    x = 111,010.21

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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.