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Finding the Fourth Proportional to 154,502.91, 213,231.96 and 94,108.91

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Solution

The fourth proportional to 154,502.91, 213,231.96 and 94,108.91 is: 129,881.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,502.91 : 213,231.96 = 94,108.91 : x
  2. Step 2: Convert to fraction form
    154,502.91/213,231.96 = 94,108.91/x
  3. Step 3: Cross multiply
    154,502.91x = 213,231.96 × 94,108.91
  4. Step 4: Simplify right side
    154,502.91x = 20,067,026,266.60
  5. Step 5: Solve for x
    x = 20,067,026,266.60/154,502.91
  6. Step 6: Final answer
    x = 129,881.22

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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.