Home / 112,318.44-168,331.90-45,681

Finding the Fourth Proportional to 112,318.44, 168,331.90 and 45,681

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Solution

The fourth proportional to 112,318.44, 168,331.90 and 45,681 is: 68,462.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,318.44 : 168,331.90 = 45,681 : x
  2. Step 2: Convert to fraction form
    112,318.44/168,331.90 = 45,681/x
  3. Step 3: Cross multiply
    112,318.44x = 168,331.90 × 45,681
  4. Step 4: Simplify right side
    112,318.44x = 7,689,569,523.90
  5. Step 5: Solve for x
    x = 7,689,569,523.90/112,318.44
  6. Step 6: Final answer
    x = 68,462.22

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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.