Home / 181,738.36-272,638.72-69,428.62

Finding the Fourth Proportional to 181,738.36, 272,638.72 and 69,428.62

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Solution

The fourth proportional to 181,738.36, 272,638.72 and 69,428.62 is: 104,154.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,738.36 : 272,638.72 = 69,428.62 : x
  2. Step 2: Convert to fraction form
    181,738.36/272,638.72 = 69,428.62/x
  3. Step 3: Cross multiply
    181,738.36x = 272,638.72 × 69,428.62
  4. Step 4: Simplify right side
    181,738.36x = 18,928,930,088.17
  5. Step 5: Solve for x
    x = 18,928,930,088.17/181,738.36
  6. Step 6: Final answer
    x = 104,154.84

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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.