Home / 139,964.86-193,150.52-76,303.11

Finding the Fourth Proportional to 139,964.86, 193,150.52 and 76,303.11

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Solution

The fourth proportional to 139,964.86, 193,150.52 and 76,303.11 is: 105,297.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,964.86 : 193,150.52 = 76,303.11 : x
  2. Step 2: Convert to fraction form
    139,964.86/193,150.52 = 76,303.11/x
  3. Step 3: Cross multiply
    139,964.86x = 193,150.52 × 76,303.11
  4. Step 4: Simplify right side
    139,964.86x = 14,737,986,432.26
  5. Step 5: Solve for x
    x = 14,737,986,432.26/139,964.86
  6. Step 6: Final answer
    x = 105,297.76

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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.