Home / 105,764.60-145,914.90-67,525.60

Finding the Fourth Proportional to 105,764.60, 145,914.90 and 67,525.60

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Solution

The fourth proportional to 105,764.60, 145,914.90 and 67,525.60 is: 93,159.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,764.60 : 145,914.90 = 67,525.60 : x
  2. Step 2: Convert to fraction form
    105,764.60/145,914.90 = 67,525.60/x
  3. Step 3: Cross multiply
    105,764.60x = 145,914.90 × 67,525.60
  4. Step 4: Simplify right side
    105,764.60x = 9,852,991,171.44
  5. Step 5: Solve for x
    x = 9,852,991,171.44/105,764.60
  6. Step 6: Final answer
    x = 93,159.63

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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.