Home / 135,423.48-186,879.72-74,996.64

Finding the Fourth Proportional to 135,423.48, 186,879.72 and 74,996.64

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Solution

The fourth proportional to 135,423.48, 186,879.72 and 74,996.64 is: 103,492.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,423.48 : 186,879.72 = 74,996.64 : x
  2. Step 2: Convert to fraction form
    135,423.48/186,879.72 = 74,996.64/x
  3. Step 3: Cross multiply
    135,423.48x = 186,879.72 × 74,996.64
  4. Step 4: Simplify right side
    135,423.48x = 14,015,351,084.14
  5. Step 5: Solve for x
    x = 14,015,351,084.14/135,423.48
  6. Step 6: Final answer
    x = 103,492.77

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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.