Home / 112,203.11-168,359.34-45,689.15

Finding the Fourth Proportional to 112,203.11, 168,359.34 and 45,689.15

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Solution

The fourth proportional to 112,203.11, 168,359.34 and 45,689.15 is: 68,555.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,203.11 : 168,359.34 = 45,689.15 : x
  2. Step 2: Convert to fraction form
    112,203.11/168,359.34 = 45,689.15/x
  3. Step 3: Cross multiply
    112,203.11x = 168,359.34 × 45,689.15
  4. Step 4: Simplify right side
    112,203.11x = 7,692,194,297.36
  5. Step 5: Solve for x
    x = 7,692,194,297.36/112,203.11
  6. Step 6: Final answer
    x = 68,555.98

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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.