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Finding the Fourth Proportional to 155,138.76, 232,492.82 and 70,692.54

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Solution

The fourth proportional to 155,138.76, 232,492.82 and 70,692.54 is: 105,940.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,138.76 : 232,492.82 = 70,692.54 : x
  2. Step 2: Convert to fraction form
    155,138.76/232,492.82 = 70,692.54/x
  3. Step 3: Cross multiply
    155,138.76x = 232,492.82 × 70,692.54
  4. Step 4: Simplify right side
    155,138.76x = 16,435,507,977.56
  5. Step 5: Solve for x
    x = 16,435,507,977.56/155,138.76
  6. Step 6: Final answer
    x = 105,940.69

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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.