Home / 134,912.18-186,185.04-74,491.40

Finding the Fourth Proportional to 134,912.18, 186,185.04 and 74,491.40

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Solution

The fourth proportional to 134,912.18, 186,185.04 and 74,491.40 is: 102,801.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,912.18 : 186,185.04 = 74,491.40 : x
  2. Step 2: Convert to fraction form
    134,912.18/186,185.04 = 74,491.40/x
  3. Step 3: Cross multiply
    134,912.18x = 186,185.04 × 74,491.40
  4. Step 4: Simplify right side
    134,912.18x = 13,869,184,288.66
  5. Step 5: Solve for x
    x = 13,869,184,288.66/134,912.18
  6. Step 6: Final answer
    x = 102,801.57

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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.