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Finding the Fourth Proportional to 103,482.45, 155,102.18 and 102,374.37

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Solution

The fourth proportional to 103,482.45, 155,102.18 and 102,374.37 is: 153,441.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,482.45 : 155,102.18 = 102,374.37 : x
  2. Step 2: Convert to fraction form
    103,482.45/155,102.18 = 102,374.37/x
  3. Step 3: Cross multiply
    103,482.45x = 155,102.18 × 102,374.37
  4. Step 4: Simplify right side
    103,482.45x = 15,878,487,451.25
  5. Step 5: Solve for x
    x = 15,878,487,451.25/103,482.45
  6. Step 6: Final answer
    x = 153,441.36

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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.