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Finding the Fourth Proportional to 158,468.08, 218,703 and 101,108.96

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Solution

The fourth proportional to 158,468.08, 218,703 and 101,108.96 is: 139,541.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,468.08 : 218,703 = 101,108.96 : x
  2. Step 2: Convert to fraction form
    158,468.08/218,703 = 101,108.96/x
  3. Step 3: Cross multiply
    158,468.08x = 218,703 × 101,108.96
  4. Step 4: Simplify right side
    158,468.08x = 22,112,832,878.88
  5. Step 5: Solve for x
    x = 22,112,832,878.88/158,468.08
  6. Step 6: Final answer
    x = 139,541.24

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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.