Home / 135,637.86-187,172.70-75,204.96

Finding the Fourth Proportional to 135,637.86, 187,172.70 and 75,204.96

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Solution

The fourth proportional to 135,637.86, 187,172.70 and 75,204.96 is: 103,778.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,637.86 : 187,172.70 = 75,204.96 : x
  2. Step 2: Convert to fraction form
    135,637.86/187,172.70 = 75,204.96/x
  3. Step 3: Cross multiply
    135,637.86x = 187,172.70 × 75,204.96
  4. Step 4: Simplify right side
    135,637.86x = 14,076,315,416.59
  5. Step 5: Solve for x
    x = 14,076,315,416.59/135,637.86
  6. Step 6: Final answer
    x = 103,778.66

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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.