Home / 148,131.18-204,208.38-105,615.90

Finding the Fourth Proportional to 148,131.18, 204,208.38 and 105,615.90

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Solution

The fourth proportional to 148,131.18, 204,208.38 and 105,615.90 is: 145,598.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,131.18 : 204,208.38 = 105,615.90 : x
  2. Step 2: Convert to fraction form
    148,131.18/204,208.38 = 105,615.90/x
  3. Step 3: Cross multiply
    148,131.18x = 204,208.38 × 105,615.90
  4. Step 4: Simplify right side
    148,131.18x = 21,567,651,841.24
  5. Step 5: Solve for x
    x = 21,567,651,841.24/148,131.18
  6. Step 6: Final answer
    x = 145,598.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.