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Finding the Fourth Proportional to 100,962, 139,328.10 and 56,250

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Solution

The fourth proportional to 100,962, 139,328.10 and 56,250 is: 77,625.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,962 : 139,328.10 = 56,250 : x
  2. Step 2: Convert to fraction form
    100,962/139,328.10 = 56,250/x
  3. Step 3: Cross multiply
    100,962x = 139,328.10 × 56,250
  4. Step 4: Simplify right side
    100,962x = 7,837,205,625
  5. Step 5: Solve for x
    x = 7,837,205,625/100,962
  6. Step 6: Final answer
    x = 77,625.30

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