Home / 125,161.89-172,693.67-76,102.02

Finding the Fourth Proportional to 125,161.89, 172,693.67 and 76,102.02

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Solution

The fourth proportional to 125,161.89, 172,693.67 and 76,102.02 is: 105,002.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,161.89 : 172,693.67 = 76,102.02 : x
  2. Step 2: Convert to fraction form
    125,161.89/172,693.67 = 76,102.02/x
  3. Step 3: Cross multiply
    125,161.89x = 172,693.67 × 76,102.02
  4. Step 4: Simplify right side
    125,161.89x = 13,142,336,747.70
  5. Step 5: Solve for x
    x = 13,142,336,747.70/125,161.89
  6. Step 6: Final answer
    x = 105,002.70

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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.