Home / 130,954.48-180,711.32-76,511.68

Finding the Fourth Proportional to 130,954.48, 180,711.32 and 76,511.68

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Solution

The fourth proportional to 130,954.48, 180,711.32 and 76,511.68 is: 105,582.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,954.48 : 180,711.32 = 76,511.68 : x
  2. Step 2: Convert to fraction form
    130,954.48/180,711.32 = 76,511.68/x
  3. Step 3: Cross multiply
    130,954.48x = 180,711.32 × 76,511.68
  4. Step 4: Simplify right side
    130,954.48x = 13,826,526,688.22
  5. Step 5: Solve for x
    x = 13,826,526,688.22/130,954.48
  6. Step 6: Final answer
    x = 105,582.69

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.