Home / 172,346.26-258,564.93-78,830.14

Finding the Fourth Proportional to 172,346.26, 258,564.93 and 78,830.14

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Solution

The fourth proportional to 172,346.26, 258,564.93 and 78,830.14 is: 118,266.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,346.26 : 258,564.93 = 78,830.14 : x
  2. Step 2: Convert to fraction form
    172,346.26/258,564.93 = 78,830.14/x
  3. Step 3: Cross multiply
    172,346.26x = 258,564.93 × 78,830.14
  4. Step 4: Simplify right side
    172,346.26x = 20,382,709,630.99
  5. Step 5: Solve for x
    x = 20,382,709,630.99/172,346.26
  6. Step 6: Final answer
    x = 118,266.04

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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.