Home / 162,127.49-242,692.94-138,212.64

Finding the Fourth Proportional to 162,127.49, 242,692.94 and 138,212.64

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Solution

The fourth proportional to 162,127.49, 242,692.94 and 138,212.64 is: 206,894.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,127.49 : 242,692.94 = 138,212.64 : x
  2. Step 2: Convert to fraction form
    162,127.49/242,692.94 = 138,212.64/x
  3. Step 3: Cross multiply
    162,127.49x = 242,692.94 × 138,212.64
  4. Step 4: Simplify right side
    162,127.49x = 33,543,232,292.29
  5. Step 5: Solve for x
    x = 33,543,232,292.29/162,127.49
  6. Step 6: Final answer
    x = 206,894.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.