Home / 103,421.90-155,161.65-50,833.10

Finding the Fourth Proportional to 103,421.90, 155,161.65 and 50,833.10

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Solution

The fourth proportional to 103,421.90, 155,161.65 and 50,833.10 is: 76,263.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,421.90 : 155,161.65 = 50,833.10 : x
  2. Step 2: Convert to fraction form
    103,421.90/155,161.65 = 50,833.10/x
  3. Step 3: Cross multiply
    103,421.90x = 155,161.65 × 50,833.10
  4. Step 4: Simplify right side
    103,421.90x = 7,887,347,670.62
  5. Step 5: Solve for x
    x = 7,887,347,670.62/103,421.90
  6. Step 6: Final answer
    x = 76,263.81

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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.