Home / 140,122.51-193,373.73-76,463.80

Finding the Fourth Proportional to 140,122.51, 193,373.73 and 76,463.80

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Solution

The fourth proportional to 140,122.51, 193,373.73 and 76,463.80 is: 105,522.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,122.51 : 193,373.73 = 76,463.80 : x
  2. Step 2: Convert to fraction form
    140,122.51/193,373.73 = 76,463.80/x
  3. Step 3: Cross multiply
    140,122.51x = 193,373.73 × 76,463.80
  4. Step 4: Simplify right side
    140,122.51x = 14,786,089,833.66
  5. Step 5: Solve for x
    x = 14,786,089,833.66/140,122.51
  6. Step 6: Final answer
    x = 105,522.59

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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.