Home / 134,991.09-186,289.20-74,563.47

Finding the Fourth Proportional to 134,991.09, 186,289.20 and 74,563.47

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Solution

The fourth proportional to 134,991.09, 186,289.20 and 74,563.47 is: 102,898.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,991.09 : 186,289.20 = 74,563.47 : x
  2. Step 2: Convert to fraction form
    134,991.09/186,289.20 = 74,563.47/x
  3. Step 3: Cross multiply
    134,991.09x = 186,289.20 × 74,563.47
  4. Step 4: Simplify right side
    134,991.09x = 13,890,369,175.52
  5. Step 5: Solve for x
    x = 13,890,369,175.52/134,991.09
  6. Step 6: Final answer
    x = 102,898.41

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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.