Home / 181,814.40-272,721.60-118,828.80

Finding the Fourth Proportional to 181,814.40, 272,721.60 and 118,828.80

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Solution

The fourth proportional to 181,814.40, 272,721.60 and 118,828.80 is: 178,243.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,814.40 : 272,721.60 = 118,828.80 : x
  2. Step 2: Convert to fraction form
    181,814.40/272,721.60 = 118,828.80/x
  3. Step 3: Cross multiply
    181,814.40x = 272,721.60 × 118,828.80
  4. Step 4: Simplify right side
    181,814.40x = 32,407,180,462.08
  5. Step 5: Solve for x
    x = 32,407,180,462.08/181,814.40
  6. Step 6: Final answer
    x = 178,243.20

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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.