Home / 114,890.20-172,464.90-68,169.40

Finding the Fourth Proportional to 114,890.20, 172,464.90 and 68,169.40

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Solution

The fourth proportional to 114,890.20, 172,464.90 and 68,169.40 is: 102,331.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,890.20 : 172,464.90 = 68,169.40 : x
  2. Step 2: Convert to fraction form
    114,890.20/172,464.90 = 68,169.40/x
  3. Step 3: Cross multiply
    114,890.20x = 172,464.90 × 68,169.40
  4. Step 4: Simplify right side
    114,890.20x = 11,756,828,754.06
  5. Step 5: Solve for x
    x = 11,756,828,754.06/114,890.20
  6. Step 6: Final answer
    x = 102,331.00

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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.