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Finding the Fourth Proportional to 140,730.88, 211,122.88 and 56,497.64

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Solution

The fourth proportional to 140,730.88, 211,122.88 and 56,497.64 is: 84,757.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,730.88 : 211,122.88 = 56,497.64 : x
  2. Step 2: Convert to fraction form
    140,730.88/211,122.88 = 56,497.64/x
  3. Step 3: Cross multiply
    140,730.88x = 211,122.88 × 56,497.64
  4. Step 4: Simplify right side
    140,730.88x = 11,927,944,470.00
  5. Step 5: Solve for x
    x = 11,927,944,470.00/140,730.88
  6. Step 6: Final answer
    x = 84,757.12

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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.