Home / 140,086.28-193,319.52-76,425.41

Finding the Fourth Proportional to 140,086.28, 193,319.52 and 76,425.41

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Solution

The fourth proportional to 140,086.28, 193,319.52 and 76,425.41 is: 105,467.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,086.28 : 193,319.52 = 76,425.41 : x
  2. Step 2: Convert to fraction form
    140,086.28/193,319.52 = 76,425.41/x
  3. Step 3: Cross multiply
    140,086.28x = 193,319.52 × 76,425.41
  4. Step 4: Simplify right side
    140,086.28x = 14,774,523,577.00
  5. Step 5: Solve for x
    x = 14,774,523,577.00/140,086.28
  6. Step 6: Final answer
    x = 105,467.31

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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.