Home / 102,766.70-154,150.05-91,880.30

Finding the Fourth Proportional to 102,766.70, 154,150.05 and 91,880.30

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Solution

The fourth proportional to 102,766.70, 154,150.05 and 91,880.30 is: 137,820.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,766.70 : 154,150.05 = 91,880.30 : x
  2. Step 2: Convert to fraction form
    102,766.70/154,150.05 = 91,880.30/x
  3. Step 3: Cross multiply
    102,766.70x = 154,150.05 × 91,880.30
  4. Step 4: Simplify right side
    102,766.70x = 14,163,352,839.02
  5. Step 5: Solve for x
    x = 14,163,352,839.02/102,766.70
  6. Step 6: Final answer
    x = 137,820.45

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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.