Home / 181,830.40-272,551.20-81,973.60

Finding the Fourth Proportional to 181,830.40, 272,551.20 and 81,973.60

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Solution

The fourth proportional to 181,830.40, 272,551.20 and 81,973.60 is: 122,872.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,830.40 : 272,551.20 = 81,973.60 : x
  2. Step 2: Convert to fraction form
    181,830.40/272,551.20 = 81,973.60/x
  3. Step 3: Cross multiply
    181,830.40x = 272,551.20 × 81,973.60
  4. Step 4: Simplify right side
    181,830.40x = 22,342,003,048.32
  5. Step 5: Solve for x
    x = 22,342,003,048.32/181,830.40
  6. Step 6: Final answer
    x = 122,872.76

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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.