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Finding the Fourth Proportional to 140,612.85, 210,935.71 and 49,400.25

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Solution

The fourth proportional to 140,612.85, 210,935.71 and 49,400.25 is: 74,106.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,612.85 : 210,935.71 = 49,400.25 : x
  2. Step 2: Convert to fraction form
    140,612.85/210,935.71 = 49,400.25/x
  3. Step 3: Cross multiply
    140,612.85x = 210,935.71 × 49,400.25
  4. Step 4: Simplify right side
    140,612.85x = 10,420,276,807.93
  5. Step 5: Solve for x
    x = 10,420,276,807.93/140,612.85
  6. Step 6: Final answer
    x = 74,106.15

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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.