Home / 101,328.18-139,833.44-55,387.88

Finding the Fourth Proportional to 101,328.18, 139,833.44 and 55,387.88

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Solution

The fourth proportional to 101,328.18, 139,833.44 and 55,387.88 is: 76,435.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,328.18 : 139,833.44 = 55,387.88 : x
  2. Step 2: Convert to fraction form
    101,328.18/139,833.44 = 55,387.88/x
  3. Step 3: Cross multiply
    101,328.18x = 139,833.44 × 55,387.88
  4. Step 4: Simplify right side
    101,328.18x = 7,745,077,794.71
  5. Step 5: Solve for x
    x = 7,745,077,794.71/101,328.18
  6. Step 6: Final answer
    x = 76,435.58

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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.