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Finding the Fourth Proportional to 163,491.50, 245,236.92 and 45,162.50

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Solution

The fourth proportional to 163,491.50, 245,236.92 and 45,162.50 is: 67,743.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,491.50 : 245,236.92 = 45,162.50 : x
  2. Step 2: Convert to fraction form
    163,491.50/245,236.92 = 45,162.50/x
  3. Step 3: Cross multiply
    163,491.50x = 245,236.92 × 45,162.50
  4. Step 4: Simplify right side
    163,491.50x = 11,075,512,399.50
  5. Step 5: Solve for x
    x = 11,075,512,399.50/163,491.50
  6. Step 6: Final answer
    x = 67,743.66

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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.