Home / 102,997.10-154,495.65-91,333.10

Finding the Fourth Proportional to 102,997.10, 154,495.65 and 91,333.10

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Solution

The fourth proportional to 102,997.10, 154,495.65 and 91,333.10 is: 136,999.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,997.10 : 154,495.65 = 91,333.10 : x
  2. Step 2: Convert to fraction form
    102,997.10/154,495.65 = 91,333.10/x
  3. Step 3: Cross multiply
    102,997.10x = 154,495.65 × 91,333.10
  4. Step 4: Simplify right side
    102,997.10x = 14,110,566,651.02
  5. Step 5: Solve for x
    x = 14,110,566,651.02/102,997.10
  6. Step 6: Final answer
    x = 136,999.65

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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.