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Finding the Fourth Proportional to 151,569.72, 209,142.06 and 84,502.20

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Solution

The fourth proportional to 151,569.72, 209,142.06 and 84,502.20 is: 116,599.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,569.72 : 209,142.06 = 84,502.20 : x
  2. Step 2: Convert to fraction form
    151,569.72/209,142.06 = 84,502.20/x
  3. Step 3: Cross multiply
    151,569.72x = 209,142.06 × 84,502.20
  4. Step 4: Simplify right side
    151,569.72x = 17,672,964,182.53
  5. Step 5: Solve for x
    x = 17,672,964,182.53/151,569.72
  6. Step 6: Final answer
    x = 116,599.57

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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.