Home / 144,860.20-217,031.10-118,421.80

Finding the Fourth Proportional to 144,860.20, 217,031.10 and 118,421.80

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Solution

The fourth proportional to 144,860.20, 217,031.10 and 118,421.80 is: 177,420.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,860.20 : 217,031.10 = 118,421.80 : x
  2. Step 2: Convert to fraction form
    144,860.20/217,031.10 = 118,421.80/x
  3. Step 3: Cross multiply
    144,860.20x = 217,031.10 × 118,421.80
  4. Step 4: Simplify right side
    144,860.20x = 25,701,213,517.98
  5. Step 5: Solve for x
    x = 25,701,213,517.98/144,860.20
  6. Step 6: Final answer
    x = 177,420.81

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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.