Home / 115,000.84-172,446.63-40,111.89

Finding the Fourth Proportional to 115,000.84, 172,446.63 and 40,111.89

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Solution

The fourth proportional to 115,000.84, 172,446.63 and 40,111.89 is: 60,148.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,000.84 : 172,446.63 = 40,111.89 : x
  2. Step 2: Convert to fraction form
    115,000.84/172,446.63 = 40,111.89/x
  3. Step 3: Cross multiply
    115,000.84x = 172,446.63 × 40,111.89
  4. Step 4: Simplify right side
    115,000.84x = 6,917,160,253.43
  5. Step 5: Solve for x
    x = 6,917,160,253.43/115,000.84
  6. Step 6: Final answer
    x = 60,148.78

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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.