Home / 146,216.10-219,214.80-79,731.30

Finding the Fourth Proportional to 146,216.10, 219,214.80 and 79,731.30

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Solution

The fourth proportional to 146,216.10, 219,214.80 and 79,731.30 is: 119,537.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,216.10 : 219,214.80 = 79,731.30 : x
  2. Step 2: Convert to fraction form
    146,216.10/219,214.80 = 79,731.30/x
  3. Step 3: Cross multiply
    146,216.10x = 219,214.80 × 79,731.30
  4. Step 4: Simplify right side
    146,216.10x = 17,478,280,983.24
  5. Step 5: Solve for x
    x = 17,478,280,983.24/146,216.10
  6. Step 6: Final answer
    x = 119,537.32

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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.