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Finding the Fourth Proportional to 140,590.44, 210,885.72 and 40,750.74

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Solution

The fourth proportional to 140,590.44, 210,885.72 and 40,750.74 is: 61,126.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,590.44 : 210,885.72 = 40,750.74 : x
  2. Step 2: Convert to fraction form
    140,590.44/210,885.72 = 40,750.74/x
  3. Step 3: Cross multiply
    140,590.44x = 210,885.72 × 40,750.74
  4. Step 4: Simplify right side
    140,590.44x = 8,593,749,145.43
  5. Step 5: Solve for x
    x = 8,593,749,145.43/140,590.44
  6. Step 6: Final answer
    x = 61,126.13

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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.