Home / 172,748.52-258,973.76-70,179.12

Finding the Fourth Proportional to 172,748.52, 258,973.76 and 70,179.12

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Solution

The fourth proportional to 172,748.52, 258,973.76 and 70,179.12 is: 105,208.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,748.52 : 258,973.76 = 70,179.12 : x
  2. Step 2: Convert to fraction form
    172,748.52/258,973.76 = 70,179.12/x
  3. Step 3: Cross multiply
    172,748.52x = 258,973.76 × 70,179.12
  4. Step 4: Simplify right side
    172,748.52x = 18,174,550,229.00
  5. Step 5: Solve for x
    x = 18,174,550,229.00/172,748.52
  6. Step 6: Final answer
    x = 105,208.14

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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.