Home / 135,021.62-186,328.95-74,596.16

Finding the Fourth Proportional to 135,021.62, 186,328.95 and 74,596.16

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Solution

The fourth proportional to 135,021.62, 186,328.95 and 74,596.16 is: 102,942.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,021.62 : 186,328.95 = 74,596.16 : x
  2. Step 2: Convert to fraction form
    135,021.62/186,328.95 = 74,596.16/x
  3. Step 3: Cross multiply
    135,021.62x = 186,328.95 × 74,596.16
  4. Step 4: Simplify right side
    135,021.62x = 13,899,424,166.83
  5. Step 5: Solve for x
    x = 13,899,424,166.83/135,021.62
  6. Step 6: Final answer
    x = 102,942.21

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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.