Home / 139,967.56-193,155.30-76,304.04

Finding the Fourth Proportional to 139,967.56, 193,155.30 and 76,304.04

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Solution

The fourth proportional to 139,967.56, 193,155.30 and 76,304.04 is: 105,299.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,967.56 : 193,155.30 = 76,304.04 : x
  2. Step 2: Convert to fraction form
    139,967.56/193,155.30 = 76,304.04/x
  3. Step 3: Cross multiply
    139,967.56x = 193,155.30 × 76,304.04
  4. Step 4: Simplify right side
    139,967.56x = 14,738,529,737.41
  5. Step 5: Solve for x
    x = 14,738,529,737.41/139,967.56
  6. Step 6: Final answer
    x = 105,299.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.