Home / 163,450.12-245,156.82-45,138.28

Finding the Fourth Proportional to 163,450.12, 245,156.82 and 45,138.28

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Solution

The fourth proportional to 163,450.12, 245,156.82 and 45,138.28 is: 67,702.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,450.12 : 245,156.82 = 45,138.28 : x
  2. Step 2: Convert to fraction form
    163,450.12/245,156.82 = 45,138.28/x
  3. Step 3: Cross multiply
    163,450.12x = 245,156.82 × 45,138.28
  4. Step 4: Simplify right side
    163,450.12x = 11,065,957,185.07
  5. Step 5: Solve for x
    x = 11,065,957,185.07/163,450.12
  6. Step 6: Final answer
    x = 67,702.35

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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.