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Finding the Fourth Proportional to 178,162.90, 245,864.40 and 96,490.91

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Solution

The fourth proportional to 178,162.90, 245,864.40 and 96,490.91 is: 133,157.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,162.90 : 245,864.40 = 96,490.91 : x
  2. Step 2: Convert to fraction form
    178,162.90/245,864.40 = 96,490.91/x
  3. Step 3: Cross multiply
    178,162.90x = 245,864.40 × 96,490.91
  4. Step 4: Simplify right side
    178,162.90x = 23,723,678,562.44
  5. Step 5: Solve for x
    x = 23,723,678,562.44/178,162.90
  6. Step 6: Final answer
    x = 133,157.23

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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.