Home / 136,035.48-187,694.10-79,414.32

Finding the Fourth Proportional to 136,035.48, 187,694.10 and 79,414.32

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Solution

The fourth proportional to 136,035.48, 187,694.10 and 79,414.32 is: 109,571.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,035.48 : 187,694.10 = 79,414.32 : x
  2. Step 2: Convert to fraction form
    136,035.48/187,694.10 = 79,414.32/x
  3. Step 3: Cross multiply
    136,035.48x = 187,694.10 × 79,414.32
  4. Step 4: Simplify right side
    136,035.48x = 14,905,599,319.51
  5. Step 5: Solve for x
    x = 14,905,599,319.51/136,035.48
  6. Step 6: Final answer
    x = 109,571.41

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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.