Home / 181,826.40-272,545.20-81,969.60

Finding the Fourth Proportional to 181,826.40, 272,545.20 and 81,969.60

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Solution

The fourth proportional to 181,826.40, 272,545.20 and 81,969.60 is: 122,866.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,826.40 : 272,545.20 = 81,969.60 : x
  2. Step 2: Convert to fraction form
    181,826.40/272,545.20 = 81,969.60/x
  3. Step 3: Cross multiply
    181,826.40x = 272,545.20 × 81,969.60
  4. Step 4: Simplify right side
    181,826.40x = 22,340,421,025.92
  5. Step 5: Solve for x
    x = 22,340,421,025.92/181,826.40
  6. Step 6: Final answer
    x = 122,866.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.