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Finding the Fourth Proportional to 145,053, 217,913.04 and 103,035.24

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Solution

The fourth proportional to 145,053, 217,913.04 and 103,035.24 is: 154,789.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,053 : 217,913.04 = 103,035.24 : x
  2. Step 2: Convert to fraction form
    145,053/217,913.04 = 103,035.24/x
  3. Step 3: Cross multiply
    145,053x = 217,913.04 × 103,035.24
  4. Step 4: Simplify right side
    145,053x = 22,452,722,375.53
  5. Step 5: Solve for x
    x = 22,452,722,375.53/145,053
  6. Step 6: Final answer
    x = 154,789.78

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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.