Home / 124,764.84-172,193.04-79,428.33

Finding the Fourth Proportional to 124,764.84, 172,193.04 and 79,428.33

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Solution

The fourth proportional to 124,764.84, 172,193.04 and 79,428.33 is: 109,622.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,764.84 : 172,193.04 = 79,428.33 : x
  2. Step 2: Convert to fraction form
    124,764.84/172,193.04 = 79,428.33/x
  3. Step 3: Cross multiply
    124,764.84x = 172,193.04 × 79,428.33
  4. Step 4: Simplify right side
    124,764.84x = 13,677,005,604.82
  5. Step 5: Solve for x
    x = 13,677,005,604.82/124,764.84
  6. Step 6: Final answer
    x = 109,622.28

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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.