Home / 171,631.81-236,864.37-103,665.32

Finding the Fourth Proportional to 171,631.81, 236,864.37 and 103,665.32

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Solution

The fourth proportional to 171,631.81, 236,864.37 and 103,665.32 is: 143,065.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,631.81 : 236,864.37 = 103,665.32 : x
  2. Step 2: Convert to fraction form
    171,631.81/236,864.37 = 103,665.32/x
  3. Step 3: Cross multiply
    171,631.81x = 236,864.37 × 103,665.32
  4. Step 4: Simplify right side
    171,631.81x = 24,554,620,712.65
  5. Step 5: Solve for x
    x = 24,554,620,712.65/171,631.81
  6. Step 6: Final answer
    x = 143,065.67

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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.