Home / 128,090.36-192,113.76-34,574.24

Finding the Fourth Proportional to 128,090.36, 192,113.76 and 34,574.24

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Solution

The fourth proportional to 128,090.36, 192,113.76 and 34,574.24 is: 51,855.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,090.36 : 192,113.76 = 34,574.24 : x
  2. Step 2: Convert to fraction form
    128,090.36/192,113.76 = 34,574.24/x
  3. Step 3: Cross multiply
    128,090.36x = 192,113.76 × 34,574.24
  4. Step 4: Simplify right side
    128,090.36x = 6,642,187,245.54
  5. Step 5: Solve for x
    x = 6,642,187,245.54/128,090.36
  6. Step 6: Final answer
    x = 51,855.48

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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.