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Finding the Fourth Proportional to 140,802.60, 210,815.10 and 109,698.60

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Solution

The fourth proportional to 140,802.60, 210,815.10 and 109,698.60 is: 164,244.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,802.60 : 210,815.10 = 109,698.60 : x
  2. Step 2: Convert to fraction form
    140,802.60/210,815.10 = 109,698.60/x
  3. Step 3: Cross multiply
    140,802.60x = 210,815.10 × 109,698.60
  4. Step 4: Simplify right side
    140,802.60x = 23,126,121,328.86
  5. Step 5: Solve for x
    x = 23,126,121,328.86/140,802.60
  6. Step 6: Final answer
    x = 164,244.99

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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.