Home / 106,688.38-160,133-54,135.58

Finding the Fourth Proportional to 106,688.38, 160,133 and 54,135.58

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Solution

The fourth proportional to 106,688.38, 160,133 and 54,135.58 is: 81,254.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,688.38 : 160,133 = 54,135.58 : x
  2. Step 2: Convert to fraction form
    106,688.38/160,133 = 54,135.58/x
  3. Step 3: Cross multiply
    106,688.38x = 160,133 × 54,135.58
  4. Step 4: Simplify right side
    106,688.38x = 8,668,892,832.14
  5. Step 5: Solve for x
    x = 8,668,892,832.14/106,688.38
  6. Step 6: Final answer
    x = 81,254.33

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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.