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Finding the Fourth Proportional to 140,225.30, 210,113.30 and 73,662.74

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Solution

The fourth proportional to 140,225.30, 210,113.30 and 73,662.74 is: 110,376.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,225.30 : 210,113.30 = 73,662.74 : x
  2. Step 2: Convert to fraction form
    140,225.30/210,113.30 = 73,662.74/x
  3. Step 3: Cross multiply
    140,225.30x = 210,113.30 × 73,662.74
  4. Step 4: Simplify right side
    140,225.30x = 15,477,521,388.44
  5. Step 5: Solve for x
    x = 15,477,521,388.44/140,225.30
  6. Step 6: Final answer
    x = 110,376.10

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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.