Home / 140,273.91-193,575-76,611.96

Finding the Fourth Proportional to 140,273.91, 193,575 and 76,611.96

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Solution

The fourth proportional to 140,273.91, 193,575 and 76,611.96 is: 105,722.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,273.91 : 193,575 = 76,611.96 : x
  2. Step 2: Convert to fraction form
    140,273.91/193,575 = 76,611.96/x
  3. Step 3: Cross multiply
    140,273.91x = 193,575 × 76,611.96
  4. Step 4: Simplify right side
    140,273.91x = 14,830,160,157.00
  5. Step 5: Solve for x
    x = 14,830,160,157.00/140,273.91
  6. Step 6: Final answer
    x = 105,722.87

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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.