Home / 135,375.36-186,815.28-74,946

Finding the Fourth Proportional to 135,375.36, 186,815.28 and 74,946

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Solution

The fourth proportional to 135,375.36, 186,815.28 and 74,946 is: 103,423.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,375.36 : 186,815.28 = 74,946 : x
  2. Step 2: Convert to fraction form
    135,375.36/186,815.28 = 74,946/x
  3. Step 3: Cross multiply
    135,375.36x = 186,815.28 × 74,946
  4. Step 4: Simplify right side
    135,375.36x = 14,001,057,974.88
  5. Step 5: Solve for x
    x = 14,001,057,974.88/135,375.36
  6. Step 6: Final answer
    x = 103,423.98

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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.