Home / 130,491.73-180,070.05-76,766.37

Finding the Fourth Proportional to 130,491.73, 180,070.05 and 76,766.37

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Solution

The fourth proportional to 130,491.73, 180,070.05 and 76,766.37 is: 105,932.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,491.73 : 180,070.05 = 76,766.37 : x
  2. Step 2: Convert to fraction form
    130,491.73/180,070.05 = 76,766.37/x
  3. Step 3: Cross multiply
    130,491.73x = 180,070.05 × 76,766.37
  4. Step 4: Simplify right side
    130,491.73x = 13,823,324,084.22
  5. Step 5: Solve for x
    x = 13,823,324,084.22/130,491.73
  6. Step 6: Final answer
    x = 105,932.57

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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.