Home / 124,731.20-186,891.60-72,048.80

Finding the Fourth Proportional to 124,731.20, 186,891.60 and 72,048.80

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Solution

The fourth proportional to 124,731.20, 186,891.60 and 72,048.80 is: 107,954.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,731.20 : 186,891.60 = 72,048.80 : x
  2. Step 2: Convert to fraction form
    124,731.20/186,891.60 = 72,048.80/x
  3. Step 3: Cross multiply
    124,731.20x = 186,891.60 × 72,048.80
  4. Step 4: Simplify right side
    124,731.20x = 13,465,315,510.08
  5. Step 5: Solve for x
    x = 13,465,315,510.08/124,731.20
  6. Step 6: Final answer
    x = 107,954.67

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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.