Home / 181,815.40-272,723.10-118,829.80

Finding the Fourth Proportional to 181,815.40, 272,723.10 and 118,829.80

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Solution

The fourth proportional to 181,815.40, 272,723.10 and 118,829.80 is: 178,244.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,815.40 : 272,723.10 = 118,829.80 : x
  2. Step 2: Convert to fraction form
    181,815.40/272,723.10 = 118,829.80/x
  3. Step 3: Cross multiply
    181,815.40x = 272,723.10 × 118,829.80
  4. Step 4: Simplify right side
    181,815.40x = 32,407,631,428.38
  5. Step 5: Solve for x
    x = 32,407,631,428.38/181,815.40
  6. Step 6: Final answer
    x = 178,244.70

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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.