Home / 134,964.30-186,273.52-78,408.48

Finding the Fourth Proportional to 134,964.30, 186,273.52 and 78,408.48

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Solution

The fourth proportional to 134,964.30, 186,273.52 and 78,408.48 is: 108,216.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,964.30 : 186,273.52 = 78,408.48 : x
  2. Step 2: Convert to fraction form
    134,964.30/186,273.52 = 78,408.48/x
  3. Step 3: Cross multiply
    134,964.30x = 186,273.52 × 78,408.48
  4. Step 4: Simplify right side
    134,964.30x = 14,605,423,567.45
  5. Step 5: Solve for x
    x = 14,605,423,567.45/134,964.30
  6. Step 6: Final answer
    x = 108,216.94

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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.