Home / 128,543.13-192,812.63-35,048.88

Finding the Fourth Proportional to 128,543.13, 192,812.63 and 35,048.88

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Solution

The fourth proportional to 128,543.13, 192,812.63 and 35,048.88 is: 52,572.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,543.13 : 192,812.63 = 35,048.88 : x
  2. Step 2: Convert to fraction form
    128,543.13/192,812.63 = 35,048.88/x
  3. Step 3: Cross multiply
    128,543.13x = 192,812.63 × 35,048.88
  4. Step 4: Simplify right side
    128,543.13x = 6,757,866,556.11
  5. Step 5: Solve for x
    x = 6,757,866,556.11/128,543.13
  6. Step 6: Final answer
    x = 52,572.76

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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.