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Finding the Fourth Proportional to 140,656.78, 210,773.62 and 56,333.35

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Solution

The fourth proportional to 140,656.78, 210,773.62 and 56,333.35 is: 84,415.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,656.78 : 210,773.62 = 56,333.35 : x
  2. Step 2: Convert to fraction form
    140,656.78/210,773.62 = 56,333.35/x
  3. Step 3: Cross multiply
    140,656.78x = 210,773.62 × 56,333.35
  4. Step 4: Simplify right side
    140,656.78x = 11,873,584,106.23
  5. Step 5: Solve for x
    x = 11,873,584,106.23/140,656.78
  6. Step 6: Final answer
    x = 84,415.30

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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.