Home / 130,805.73-180,530.24-76,375.71

Finding the Fourth Proportional to 130,805.73, 180,530.24 and 76,375.71

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Solution

The fourth proportional to 130,805.73, 180,530.24 and 76,375.71 is: 105,409.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,805.73 : 180,530.24 = 76,375.71 : x
  2. Step 2: Convert to fraction form
    130,805.73/180,530.24 = 76,375.71/x
  3. Step 3: Cross multiply
    130,805.73x = 180,530.24 × 76,375.71
  4. Step 4: Simplify right side
    130,805.73x = 13,788,124,874.59
  5. Step 5: Solve for x
    x = 13,788,124,874.59/130,805.73
  6. Step 6: Final answer
    x = 105,409.18

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1.5x scale

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.