Home / 140,281.80-193,588.88-76,619.75

Finding the Fourth Proportional to 140,281.80, 193,588.88 and 76,619.75

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Solution

The fourth proportional to 140,281.80, 193,588.88 and 76,619.75 is: 105,735.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,281.80 : 193,588.88 = 76,619.75 : x
  2. Step 2: Convert to fraction form
    140,281.80/193,588.88 = 76,619.75/x
  3. Step 3: Cross multiply
    140,281.80x = 193,588.88 × 76,619.75
  4. Step 4: Simplify right side
    140,281.80x = 14,832,731,295.96
  5. Step 5: Solve for x
    x = 14,832,731,295.96/140,281.80
  6. Step 6: Final answer
    x = 105,735.25

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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.