Home / 123,153.76-184,724-48,287.36

Finding the Fourth Proportional to 123,153.76, 184,724 and 48,287.36

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Solution

The fourth proportional to 123,153.76, 184,724 and 48,287.36 is: 72,428.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,153.76 : 184,724 = 48,287.36 : x
  2. Step 2: Convert to fraction form
    123,153.76/184,724 = 48,287.36/x
  3. Step 3: Cross multiply
    123,153.76x = 184,724 × 48,287.36
  4. Step 4: Simplify right side
    123,153.76x = 8,919,834,288.64
  5. Step 5: Solve for x
    x = 8,919,834,288.64/123,153.76
  6. Step 6: Final answer
    x = 72,428.44

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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.