Home / 144,342.09-199,190.84-79,812.98

Finding the Fourth Proportional to 144,342.09, 199,190.84 and 79,812.98

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Solution

The fourth proportional to 144,342.09, 199,190.84 and 79,812.98 is: 110,141.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,342.09 : 199,190.84 = 79,812.98 : x
  2. Step 2: Convert to fraction form
    144,342.09/199,190.84 = 79,812.98/x
  3. Step 3: Cross multiply
    144,342.09x = 199,190.84 × 79,812.98
  4. Step 4: Simplify right side
    144,342.09x = 15,898,013,134.08
  5. Step 5: Solve for x
    x = 15,898,013,134.08/144,342.09
  6. Step 6: Final answer
    x = 110,141.21

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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.