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Finding the Fourth Proportional to 181,063.35, 249,855.75 and 100,490.94

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Solution

The fourth proportional to 181,063.35, 249,855.75 and 100,490.94 is: 138,671.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,063.35 : 249,855.75 = 100,490.94 : x
  2. Step 2: Convert to fraction form
    181,063.35/249,855.75 = 100,490.94/x
  3. Step 3: Cross multiply
    181,063.35x = 249,855.75 × 100,490.94
  4. Step 4: Simplify right side
    181,063.35x = 25,108,239,181.91
  5. Step 5: Solve for x
    x = 25,108,239,181.91/181,063.35
  6. Step 6: Final answer
    x = 138,671.02

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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.