Home / 134,868.89-186,105.80-74,435.63

Finding the Fourth Proportional to 134,868.89, 186,105.80 and 74,435.63

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Solution

The fourth proportional to 134,868.89, 186,105.80 and 74,435.63 is: 102,713.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,868.89 : 186,105.80 = 74,435.63 : x
  2. Step 2: Convert to fraction form
    134,868.89/186,105.80 = 74,435.63/x
  3. Step 3: Cross multiply
    134,868.89x = 186,105.80 × 74,435.63
  4. Step 4: Simplify right side
    134,868.89x = 13,852,903,619.33
  5. Step 5: Solve for x
    x = 13,852,903,619.33/134,868.89
  6. Step 6: Final answer
    x = 102,713.86

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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.