Home / 102,821.90-154,281.45-43,708.10

Finding the Fourth Proportional to 102,821.90, 154,281.45 and 43,708.10

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Solution

The fourth proportional to 102,821.90, 154,281.45 and 43,708.10 is: 65,582.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,821.90 : 154,281.45 = 43,708.10 : x
  2. Step 2: Convert to fraction form
    102,821.90/154,281.45 = 43,708.10/x
  3. Step 3: Cross multiply
    102,821.90x = 154,281.45 × 43,708.10
  4. Step 4: Simplify right side
    102,821.90x = 6,743,349,044.75
  5. Step 5: Solve for x
    x = 6,743,349,044.75/102,821.90
  6. Step 6: Final answer
    x = 65,582.81

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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.