Home / 115,489.06-172,166.04-113,669.15

Finding the Fourth Proportional to 115,489.06, 172,166.04 and 113,669.15

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Solution

The fourth proportional to 115,489.06, 172,166.04 and 113,669.15 is: 169,453.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,489.06 : 172,166.04 = 113,669.15 : x
  2. Step 2: Convert to fraction form
    115,489.06/172,166.04 = 113,669.15/x
  3. Step 3: Cross multiply
    115,489.06x = 172,166.04 × 113,669.15
  4. Step 4: Simplify right side
    115,489.06x = 19,569,967,425.67
  5. Step 5: Solve for x
    x = 19,569,967,425.67/115,489.06
  6. Step 6: Final answer
    x = 169,453.00

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.