Home / 105,403.66-158,167.74-38,890.24

Finding the Fourth Proportional to 105,403.66, 158,167.74 and 38,890.24

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Solution

The fourth proportional to 105,403.66, 158,167.74 and 38,890.24 is: 58,358.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,403.66 : 158,167.74 = 38,890.24 : x
  2. Step 2: Convert to fraction form
    105,403.66/158,167.74 = 38,890.24/x
  3. Step 3: Cross multiply
    105,403.66x = 158,167.74 × 38,890.24
  4. Step 4: Simplify right side
    105,403.66x = 6,151,181,368.86
  5. Step 5: Solve for x
    x = 6,151,181,368.86/105,403.66
  6. Step 6: Final answer
    x = 58,358.33

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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.