Home / 105,739.59-158,512.25-45,730.53

Finding the Fourth Proportional to 105,739.59, 158,512.25 and 45,730.53

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Solution

The fourth proportional to 105,739.59, 158,512.25 and 45,730.53 is: 68,553.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,739.59 : 158,512.25 = 45,730.53 : x
  2. Step 2: Convert to fraction form
    105,739.59/158,512.25 = 45,730.53/x
  3. Step 3: Cross multiply
    105,739.59x = 158,512.25 × 45,730.53
  4. Step 4: Simplify right side
    105,739.59x = 7,248,848,975.34
  5. Step 5: Solve for x
    x = 7,248,848,975.34/105,739.59
  6. Step 6: Final answer
    x = 68,553.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.