Home / 128,319.48-192,479.31-34,825.23

Finding the Fourth Proportional to 128,319.48, 192,479.31 and 34,825.23

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Solution

The fourth proportional to 128,319.48, 192,479.31 and 34,825.23 is: 52,237.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,319.48 : 192,479.31 = 34,825.23 : x
  2. Step 2: Convert to fraction form
    128,319.48/192,479.31 = 34,825.23/x
  3. Step 3: Cross multiply
    128,319.48x = 192,479.31 × 34,825.23
  4. Step 4: Simplify right side
    128,319.48x = 6,703,136,240.99
  5. Step 5: Solve for x
    x = 6,703,136,240.99/128,319.48
  6. Step 6: Final answer
    x = 52,237.87

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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.