Home / 103,419.77-155,043.53-40,225.03

Finding the Fourth Proportional to 103,419.77, 155,043.53 and 40,225.03

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Solution

The fourth proportional to 103,419.77, 155,043.53 and 40,225.03 is: 60,304.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,419.77 : 155,043.53 = 40,225.03 : x
  2. Step 2: Convert to fraction form
    103,419.77/155,043.53 = 40,225.03/x
  3. Step 3: Cross multiply
    103,419.77x = 155,043.53 × 40,225.03
  4. Step 4: Simplify right side
    103,419.77x = 6,236,630,645.56
  5. Step 5: Solve for x
    x = 6,236,630,645.56/103,419.77
  6. Step 6: Final answer
    x = 60,304.05

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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.