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Finding the Fourth Proportional to 150,798.08, 208,110.72 and 83,730.56

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Solution

The fourth proportional to 150,798.08, 208,110.72 and 83,730.56 is: 115,553.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,798.08 : 208,110.72 = 83,730.56 : x
  2. Step 2: Convert to fraction form
    150,798.08/208,110.72 = 83,730.56/x
  3. Step 3: Cross multiply
    150,798.08x = 208,110.72 × 83,730.56
  4. Step 4: Simplify right side
    150,798.08x = 17,425,227,127.60
  5. Step 5: Solve for x
    x = 17,425,227,127.60/150,798.08
  6. Step 6: Final answer
    x = 115,553.38

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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.