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Finding the Fourth Proportional to 144,458.64, 216,545.81 and 84,410.91

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Solution

The fourth proportional to 144,458.64, 216,545.81 and 84,410.91 is: 126,533.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,458.64 : 216,545.81 = 84,410.91 : x
  2. Step 2: Convert to fraction form
    144,458.64/216,545.81 = 84,410.91/x
  3. Step 3: Cross multiply
    144,458.64x = 216,545.81 × 84,410.91
  4. Step 4: Simplify right side
    144,458.64x = 18,278,828,456.73
  5. Step 5: Solve for x
    x = 18,278,828,456.73/144,458.64
  6. Step 6: Final answer
    x = 126,533.30

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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.