Home / 163,617.46-245,431.67-45,278.90

Finding the Fourth Proportional to 163,617.46, 245,431.67 and 45,278.90

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Solution

The fourth proportional to 163,617.46, 245,431.67 and 45,278.90 is: 67,919.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,617.46 : 245,431.67 = 45,278.90 : x
  2. Step 2: Convert to fraction form
    163,617.46/245,431.67 = 45,278.90/x
  3. Step 3: Cross multiply
    163,617.46x = 245,431.67 × 45,278.90
  4. Step 4: Simplify right side
    163,617.46x = 11,112,876,042.76
  5. Step 5: Solve for x
    x = 11,112,876,042.76/163,617.46
  6. Step 6: Final answer
    x = 67,919.87

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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.