Home / 135,393.50-186,848.88-74,964.15

Finding the Fourth Proportional to 135,393.50, 186,848.88 and 74,964.15

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Solution

The fourth proportional to 135,393.50, 186,848.88 and 74,964.15 is: 103,453.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,393.50 : 186,848.88 = 74,964.15 : x
  2. Step 2: Convert to fraction form
    135,393.50/186,848.88 = 74,964.15/x
  3. Step 3: Cross multiply
    135,393.50x = 186,848.88 × 74,964.15
  4. Step 4: Simplify right side
    135,393.50x = 14,006,967,467.65
  5. Step 5: Solve for x
    x = 14,006,967,467.65/135,393.50
  6. Step 6: Final answer
    x = 103,453.76

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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.