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Finding the Fourth Proportional to 157,863, 217,860.99 and 89,885.91

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Solution

The fourth proportional to 157,863, 217,860.99 and 89,885.91 is: 124,048.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,863 : 217,860.99 = 89,885.91 : x
  2. Step 2: Convert to fraction form
    157,863/217,860.99 = 89,885.91/x
  3. Step 3: Cross multiply
    157,863x = 217,860.99 × 89,885.91
  4. Step 4: Simplify right side
    157,863x = 19,582,633,339.65
  5. Step 5: Solve for x
    x = 19,582,633,339.65/157,863
  6. Step 6: Final answer
    x = 124,048.28

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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.