Home / 144,059.10-198,812.80-80,406.46

Finding the Fourth Proportional to 144,059.10, 198,812.80 and 80,406.46

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Solution

The fourth proportional to 144,059.10, 198,812.80 and 80,406.46 is: 110,967.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,059.10 : 198,812.80 = 80,406.46 : x
  2. Step 2: Convert to fraction form
    144,059.10/198,812.80 = 80,406.46/x
  3. Step 3: Cross multiply
    144,059.10x = 198,812.80 × 80,406.46
  4. Step 4: Simplify right side
    144,059.10x = 15,985,833,450.69
  5. Step 5: Solve for x
    x = 15,985,833,450.69/144,059.10
  6. Step 6: Final answer
    x = 110,967.19

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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.