Home / 126,704.65-174,850.18-72,989.50

Finding the Fourth Proportional to 126,704.65, 174,850.18 and 72,989.50

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Solution

The fourth proportional to 126,704.65, 174,850.18 and 72,989.50 is: 100,724.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,704.65 : 174,850.18 = 72,989.50 : x
  2. Step 2: Convert to fraction form
    126,704.65/174,850.18 = 72,989.50/x
  3. Step 3: Cross multiply
    126,704.65x = 174,850.18 × 72,989.50
  4. Step 4: Simplify right side
    126,704.65x = 12,762,227,213.11
  5. Step 5: Solve for x
    x = 12,762,227,213.11/126,704.65
  6. Step 6: Final answer
    x = 100,724.22

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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.