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Finding the Fourth Proportional to 140,752.60, 210,740.10 and 109,648.60

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Solution

The fourth proportional to 140,752.60, 210,740.10 and 109,648.60 is: 164,170.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,752.60 : 210,740.10 = 109,648.60 : x
  2. Step 2: Convert to fraction form
    140,752.60/210,740.10 = 109,648.60/x
  3. Step 3: Cross multiply
    140,752.60x = 210,740.10 × 109,648.60
  4. Step 4: Simplify right side
    140,752.60x = 23,107,356,928.86
  5. Step 5: Solve for x
    x = 23,107,356,928.86/140,752.60
  6. Step 6: Final answer
    x = 164,170.02

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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.