Home / 123,008.48-184,094.40-78,665.60

Finding the Fourth Proportional to 123,008.48, 184,094.40 and 78,665.60

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Solution

The fourth proportional to 123,008.48, 184,094.40 and 78,665.60 is: 117,730.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,008.48 : 184,094.40 = 78,665.60 : x
  2. Step 2: Convert to fraction form
    123,008.48/184,094.40 = 78,665.60/x
  3. Step 3: Cross multiply
    123,008.48x = 184,094.40 × 78,665.60
  4. Step 4: Simplify right side
    123,008.48x = 14,481,896,432.64
  5. Step 5: Solve for x
    x = 14,481,896,432.64/123,008.48
  6. Step 6: Final answer
    x = 117,730.88

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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.