Home / 163,821.80-245,732.81-45,493.16

Finding the Fourth Proportional to 163,821.80, 245,732.81 and 45,493.16

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Solution

The fourth proportional to 163,821.80, 245,732.81 and 45,493.16 is: 68,239.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,821.80 : 245,732.81 = 45,493.16 : x
  2. Step 2: Convert to fraction form
    163,821.80/245,732.81 = 45,493.16/x
  3. Step 3: Cross multiply
    163,821.80x = 245,732.81 × 45,493.16
  4. Step 4: Simplify right side
    163,821.80x = 11,179,160,586.45
  5. Step 5: Solve for x
    x = 11,179,160,586.45/163,821.80
  6. Step 6: Final answer
    x = 68,239.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.