Home / 112,072.38-167,612.49-99,679.02

Finding the Fourth Proportional to 112,072.38, 167,612.49 and 99,679.02

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Solution

The fourth proportional to 112,072.38, 167,612.49 and 99,679.02 is: 149,077.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,072.38 : 167,612.49 = 99,679.02 : x
  2. Step 2: Convert to fraction form
    112,072.38/167,612.49 = 99,679.02/x
  3. Step 3: Cross multiply
    112,072.38x = 167,612.49 × 99,679.02
  4. Step 4: Simplify right side
    112,072.38x = 16,707,448,742.96
  5. Step 5: Solve for x
    x = 16,707,448,742.96/112,072.38
  6. Step 6: Final answer
    x = 149,077.31

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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.