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Finding the Fourth Proportional to 181,490.60, 272,235.90 and 102,758.60

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Solution

The fourth proportional to 181,490.60, 272,235.90 and 102,758.60 is: 154,137.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,490.60 : 272,235.90 = 102,758.60 : x
  2. Step 2: Convert to fraction form
    181,490.60/272,235.90 = 102,758.60/x
  3. Step 3: Cross multiply
    181,490.60x = 272,235.90 × 102,758.60
  4. Step 4: Simplify right side
    181,490.60x = 27,974,579,953.74
  5. Step 5: Solve for x
    x = 27,974,579,953.74/181,490.60
  6. Step 6: Final answer
    x = 154,137.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.