Home / 115,214.28-172,821.15-45,044.25

Finding the Fourth Proportional to 115,214.28, 172,821.15 and 45,044.25

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Solution

The fourth proportional to 115,214.28, 172,821.15 and 45,044.25 is: 67,566.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,214.28 : 172,821.15 = 45,044.25 : x
  2. Step 2: Convert to fraction form
    115,214.28/172,821.15 = 45,044.25/x
  3. Step 3: Cross multiply
    115,214.28x = 172,821.15 × 45,044.25
  4. Step 4: Simplify right side
    115,214.28x = 7,784,599,085.89
  5. Step 5: Solve for x
    x = 7,784,599,085.89/115,214.28
  6. Step 6: Final answer
    x = 67,566.27

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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.