Home / 130,480.15-180,059.67-76,028.95

Finding the Fourth Proportional to 130,480.15, 180,059.67 and 76,028.95

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Solution

The fourth proportional to 130,480.15, 180,059.67 and 76,028.95 is: 104,918.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,480.15 : 180,059.67 = 76,028.95 : x
  2. Step 2: Convert to fraction form
    130,480.15/180,059.67 = 76,028.95/x
  3. Step 3: Cross multiply
    130,480.15x = 180,059.67 × 76,028.95
  4. Step 4: Simplify right side
    130,480.15x = 13,689,746,645.85
  5. Step 5: Solve for x
    x = 13,689,746,645.85/130,480.15
  6. Step 6: Final answer
    x = 104,918.23

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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.