Home / 129,798.30-179,087.66-76,054.50

Finding the Fourth Proportional to 129,798.30, 179,087.66 and 76,054.50

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Solution

The fourth proportional to 129,798.30, 179,087.66 and 76,054.50 is: 104,935.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,798.30 : 179,087.66 = 76,054.50 : x
  2. Step 2: Convert to fraction form
    129,798.30/179,087.66 = 76,054.50/x
  3. Step 3: Cross multiply
    129,798.30x = 179,087.66 × 76,054.50
  4. Step 4: Simplify right side
    129,798.30x = 13,620,422,437.47
  5. Step 5: Solve for x
    x = 13,620,422,437.47/129,798.30
  6. Step 6: Final answer
    x = 104,935.29

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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.