Home / 181,619.40-272,429.10-56,960.20

Finding the Fourth Proportional to 181,619.40, 272,429.10 and 56,960.20

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Solution

The fourth proportional to 181,619.40, 272,429.10 and 56,960.20 is: 85,440.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,619.40 : 272,429.10 = 56,960.20 : x
  2. Step 2: Convert to fraction form
    181,619.40/272,429.10 = 56,960.20/x
  3. Step 3: Cross multiply
    181,619.40x = 272,429.10 × 56,960.20
  4. Step 4: Simplify right side
    181,619.40x = 15,517,616,021.82
  5. Step 5: Solve for x
    x = 15,517,616,021.82/181,619.40
  6. Step 6: Final answer
    x = 85,440.30

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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.