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Finding the Fourth Proportional to 124,271.78, 171,484.53 and 69,819.69

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Solution

The fourth proportional to 124,271.78, 171,484.53 and 69,819.69 is: 96,345.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,271.78 : 171,484.53 = 69,819.69 : x
  2. Step 2: Convert to fraction form
    124,271.78/171,484.53 = 69,819.69/x
  3. Step 3: Cross multiply
    124,271.78x = 171,484.53 × 69,819.69
  4. Step 4: Simplify right side
    124,271.78x = 11,972,996,724.40
  5. Step 5: Solve for x
    x = 11,972,996,724.40/124,271.78
  6. Step 6: Final answer
    x = 96,345.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.