Home / 135,098.84-186,446.04-74,668.18

Finding the Fourth Proportional to 135,098.84, 186,446.04 and 74,668.18

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Solution

The fourth proportional to 135,098.84, 186,446.04 and 74,668.18 is: 103,047.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,098.84 : 186,446.04 = 74,668.18 : x
  2. Step 2: Convert to fraction form
    135,098.84/186,446.04 = 74,668.18/x
  3. Step 3: Cross multiply
    135,098.84x = 186,446.04 × 74,668.18
  4. Step 4: Simplify right side
    135,098.84x = 13,921,586,475.01
  5. Step 5: Solve for x
    x = 13,921,586,475.01/135,098.84
  6. Step 6: Final answer
    x = 103,047.42

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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.