Home / 124,770.84-172,201.32-79,434.34

Finding the Fourth Proportional to 124,770.84, 172,201.32 and 79,434.34

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Solution

The fourth proportional to 124,770.84, 172,201.32 and 79,434.34 is: 109,630.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,770.84 : 172,201.32 = 79,434.34 : x
  2. Step 2: Convert to fraction form
    124,770.84/172,201.32 = 79,434.34/x
  3. Step 3: Cross multiply
    124,770.84x = 172,201.32 × 79,434.34
  4. Step 4: Simplify right side
    124,770.84x = 13,678,698,201.33
  5. Step 5: Solve for x
    x = 13,678,698,201.33/124,770.84
  6. Step 6: Final answer
    x = 109,630.57

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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.