Home / 105,412.86-158,171.24-49,256.85

Finding the Fourth Proportional to 105,412.86, 158,171.24 and 49,256.85

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Solution

The fourth proportional to 105,412.86, 158,171.24 and 49,256.85 is: 73,909.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,412.86 : 158,171.24 = 49,256.85 : x
  2. Step 2: Convert to fraction form
    105,412.86/158,171.24 = 49,256.85/x
  3. Step 3: Cross multiply
    105,412.86x = 158,171.24 × 49,256.85
  4. Step 4: Simplify right side
    105,412.86x = 7,791,017,574.57
  5. Step 5: Solve for x
    x = 7,791,017,574.57/105,412.86
  6. Step 6: Final answer
    x = 73,909.55

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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.