Home / 181,328.80-272,099.84-76,139.68

Finding the Fourth Proportional to 181,328.80, 272,099.84 and 76,139.68

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Solution

The fourth proportional to 181,328.80, 272,099.84 and 76,139.68 is: 114,254.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,328.80 : 272,099.84 = 76,139.68 : x
  2. Step 2: Convert to fraction form
    181,328.80/272,099.84 = 76,139.68/x
  3. Step 3: Cross multiply
    181,328.80x = 272,099.84 × 76,139.68
  4. Step 4: Simplify right side
    181,328.80x = 20,717,594,745.65
  5. Step 5: Solve for x
    x = 20,717,594,745.65/181,328.80
  6. Step 6: Final answer
    x = 114,254.30

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1.5x scale

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.