Home / 144,705.07-199,692.70-81,041.50

Finding the Fourth Proportional to 144,705.07, 199,692.70 and 81,041.50

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Solution

The fourth proportional to 144,705.07, 199,692.70 and 81,041.50 is: 111,837.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,705.07 : 199,692.70 = 81,041.50 : x
  2. Step 2: Convert to fraction form
    144,705.07/199,692.70 = 81,041.50/x
  3. Step 3: Cross multiply
    144,705.07x = 199,692.70 × 81,041.50
  4. Step 4: Simplify right side
    144,705.07x = 16,183,395,947.05
  5. Step 5: Solve for x
    x = 16,183,395,947.05/144,705.07
  6. Step 6: Final answer
    x = 111,837.10

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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.