Home / 135,573.36-187,048.46-78,204.98

Finding the Fourth Proportional to 135,573.36, 187,048.46 and 78,204.98

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Solution

The fourth proportional to 135,573.36, 187,048.46 and 78,204.98 is: 107,898.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,573.36 : 187,048.46 = 78,204.98 : x
  2. Step 2: Convert to fraction form
    135,573.36/187,048.46 = 78,204.98/x
  3. Step 3: Cross multiply
    135,573.36x = 187,048.46 × 78,204.98
  4. Step 4: Simplify right side
    135,573.36x = 14,628,121,073.33
  5. Step 5: Solve for x
    x = 14,628,121,073.33/135,573.36
  6. Step 6: Final answer
    x = 107,898.20

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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.