Home / 101,996.93-140,755.65-56,679.14

Finding the Fourth Proportional to 101,996.93, 140,755.65 and 56,679.14

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Solution

The fourth proportional to 101,996.93, 140,755.65 and 56,679.14 is: 78,217.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,996.93 : 140,755.65 = 56,679.14 : x
  2. Step 2: Convert to fraction form
    101,996.93/140,755.65 = 56,679.14/x
  3. Step 3: Cross multiply
    101,996.93x = 140,755.65 × 56,679.14
  4. Step 4: Simplify right side
    101,996.93x = 7,977,909,192.14
  5. Step 5: Solve for x
    x = 7,977,909,192.14/101,996.93
  6. Step 6: Final answer
    x = 78,217.15

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1.5x scale

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.