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Finding the Fourth Proportional to 162,858.45, 243,802.74 and 145,752.69

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Solution

The fourth proportional to 162,858.45, 243,802.74 and 145,752.69 is: 218,195.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,858.45 : 243,802.74 = 145,752.69 : x
  2. Step 2: Convert to fraction form
    162,858.45/243,802.74 = 145,752.69/x
  3. Step 3: Cross multiply
    162,858.45x = 243,802.74 × 145,752.69
  4. Step 4: Simplify right side
    162,858.45x = 35,534,904,729.72
  5. Step 5: Solve for x
    x = 35,534,904,729.72/162,858.45
  6. Step 6: Final answer
    x = 218,195.03

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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.