Home / 103,225.80-154,447.20-61,128.48

Finding the Fourth Proportional to 103,225.80, 154,447.20 and 61,128.48

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Solution

The fourth proportional to 103,225.80, 154,447.20 and 61,128.48 is: 91,460.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,225.80 : 154,447.20 = 61,128.48 : x
  2. Step 2: Convert to fraction form
    103,225.80/154,447.20 = 61,128.48/x
  3. Step 3: Cross multiply
    103,225.80x = 154,447.20 × 61,128.48
  4. Step 4: Simplify right side
    103,225.80x = 9,441,122,576.26
  5. Step 5: Solve for x
    x = 9,441,122,576.26/103,225.80
  6. Step 6: Final answer
    x = 91,460.88

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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.