Home / 130,339.06-179,826.10-72,969.95

Finding the Fourth Proportional to 130,339.06, 179,826.10 and 72,969.95

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Solution

The fourth proportional to 130,339.06, 179,826.10 and 72,969.95 is: 100,675.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,339.06 : 179,826.10 = 72,969.95 : x
  2. Step 2: Convert to fraction form
    130,339.06/179,826.10 = 72,969.95/x
  3. Step 3: Cross multiply
    130,339.06x = 179,826.10 × 72,969.95
  4. Step 4: Simplify right side
    130,339.06x = 13,121,900,986.54
  5. Step 5: Solve for x
    x = 13,121,900,986.54/130,339.06
  6. Step 6: Final answer
    x = 100,675.13

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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.