Home / 101,968.46-140,713.95-56,646.56

Finding the Fourth Proportional to 101,968.46, 140,713.95 and 56,646.56

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Solution

The fourth proportional to 101,968.46, 140,713.95 and 56,646.56 is: 78,170.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,968.46 : 140,713.95 = 56,646.56 : x
  2. Step 2: Convert to fraction form
    101,968.46/140,713.95 = 56,646.56/x
  3. Step 3: Cross multiply
    101,968.46x = 140,713.95 × 56,646.56
  4. Step 4: Simplify right side
    101,968.46x = 7,970,960,984.21
  5. Step 5: Solve for x
    x = 7,970,960,984.21/101,968.46
  6. Step 6: Final answer
    x = 78,170.84

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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.