Home / 128,168.79-192,252.41-52,267.03

Finding the Fourth Proportional to 128,168.79, 192,252.41 and 52,267.03

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Solution

The fourth proportional to 128,168.79, 192,252.41 and 52,267.03 is: 78,400.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,168.79 : 192,252.41 = 52,267.03 : x
  2. Step 2: Convert to fraction form
    128,168.79/192,252.41 = 52,267.03/x
  3. Step 3: Cross multiply
    128,168.79x = 192,252.41 × 52,267.03
  4. Step 4: Simplify right side
    128,168.79x = 10,048,462,131.08
  5. Step 5: Solve for x
    x = 10,048,462,131.08/128,168.79
  6. Step 6: Final answer
    x = 78,400.23

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1.5x scale

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.