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Finding the Fourth Proportional to 101,967.40, 140,712.01 and 56,644.25

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Solution

The fourth proportional to 101,967.40, 140,712.01 and 56,644.25 is: 78,167.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,967.40 : 140,712.01 = 56,644.25 : x
  2. Step 2: Convert to fraction form
    101,967.40/140,712.01 = 56,644.25/x
  3. Step 3: Cross multiply
    101,967.40x = 140,712.01 × 56,644.25
  4. Step 4: Simplify right side
    101,967.40x = 7,970,526,482.61
  5. Step 5: Solve for x
    x = 7,970,526,482.61/101,967.40
  6. Step 6: Final answer
    x = 78,167.40

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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.