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Finding the Fourth Proportional to 145,473.22, 218,173.38 and 103,230.10

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Solution

The fourth proportional to 145,473.22, 218,173.38 and 103,230.10 is: 154,819.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,473.22 : 218,173.38 = 103,230.10 : x
  2. Step 2: Convert to fraction form
    145,473.22/218,173.38 = 103,230.10/x
  3. Step 3: Cross multiply
    145,473.22x = 218,173.38 × 103,230.10
  4. Step 4: Simplify right side
    145,473.22x = 22,522,059,834.74
  5. Step 5: Solve for x
    x = 22,522,059,834.74/145,473.22
  6. Step 6: Final answer
    x = 154,819.28

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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.