Home / 124,765.34-172,193.73-79,428.83

Finding the Fourth Proportional to 124,765.34, 172,193.73 and 79,428.83

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Solution

The fourth proportional to 124,765.34, 172,193.73 and 79,428.83 is: 109,622.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,765.34 : 172,193.73 = 79,428.83 : x
  2. Step 2: Convert to fraction form
    124,765.34/172,193.73 = 79,428.83/x
  3. Step 3: Cross multiply
    124,765.34x = 172,193.73 × 79,428.83
  4. Step 4: Simplify right side
    124,765.34x = 13,677,146,507.24
  5. Step 5: Solve for x
    x = 13,677,146,507.24/124,765.34
  6. Step 6: Final answer
    x = 109,622.97

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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.