Home / 130,385.73-179,960.38-79,415.27

Finding the Fourth Proportional to 130,385.73, 179,960.38 and 79,415.27

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Solution

The fourth proportional to 130,385.73, 179,960.38 and 79,415.27 is: 109,610.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,385.73 : 179,960.38 = 79,415.27 : x
  2. Step 2: Convert to fraction form
    130,385.73/179,960.38 = 79,415.27/x
  3. Step 3: Cross multiply
    130,385.73x = 179,960.38 × 79,415.27
  4. Step 4: Simplify right side
    130,385.73x = 14,291,601,267.20
  5. Step 5: Solve for x
    x = 14,291,601,267.20/130,385.73
  6. Step 6: Final answer
    x = 109,610.16

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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.