Home / 103,272.48-155,025.36-40,986.72

Finding the Fourth Proportional to 103,272.48, 155,025.36 and 40,986.72

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Solution

The fourth proportional to 103,272.48, 155,025.36 and 40,986.72 is: 61,526.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,272.48 : 155,025.36 = 40,986.72 : x
  2. Step 2: Convert to fraction form
    103,272.48/155,025.36 = 40,986.72/x
  3. Step 3: Cross multiply
    103,272.48x = 155,025.36 × 40,986.72
  4. Step 4: Simplify right side
    103,272.48x = 6,353,981,023.22
  5. Step 5: Solve for x
    x = 6,353,981,023.22/103,272.48
  6. Step 6: Final answer
    x = 61,526.37

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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.