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Finding the Fourth Proportional to 101,926.77, 140,659.79 and 56,605.50

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Solution

The fourth proportional to 101,926.77, 140,659.79 and 56,605.50 is: 78,116.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,926.77 : 140,659.79 = 56,605.50 : x
  2. Step 2: Convert to fraction form
    101,926.77/140,659.79 = 56,605.50/x
  3. Step 3: Cross multiply
    101,926.77x = 140,659.79 × 56,605.50
  4. Step 4: Simplify right side
    101,926.77x = 7,962,117,459.82
  5. Step 5: Solve for x
    x = 7,962,117,459.82/101,926.77
  6. Step 6: Final answer
    x = 78,116.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.