Home / 134,168.53-185,148.64-76,805.95

Finding the Fourth Proportional to 134,168.53, 185,148.64 and 76,805.95

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Solution

The fourth proportional to 134,168.53, 185,148.64 and 76,805.95 is: 105,989.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,168.53 : 185,148.64 = 76,805.95 : x
  2. Step 2: Convert to fraction form
    134,168.53/185,148.64 = 76,805.95/x
  3. Step 3: Cross multiply
    134,168.53x = 185,148.64 × 76,805.95
  4. Step 4: Simplify right side
    134,168.53x = 14,220,516,723.54
  5. Step 5: Solve for x
    x = 14,220,516,723.54/134,168.53
  6. Step 6: Final answer
    x = 105,989.96

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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.