Home / 128,319.47-192,479.30-34,825.22

Finding the Fourth Proportional to 128,319.47, 192,479.30 and 34,825.22

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Solution

The fourth proportional to 128,319.47, 192,479.30 and 34,825.22 is: 52,237.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,319.47 : 192,479.30 = 34,825.22 : x
  2. Step 2: Convert to fraction form
    128,319.47/192,479.30 = 34,825.22/x
  3. Step 3: Cross multiply
    128,319.47x = 192,479.30 × 34,825.22
  4. Step 4: Simplify right side
    128,319.47x = 6,703,132,831.42
  5. Step 5: Solve for x
    x = 6,703,132,831.42/128,319.47
  6. Step 6: Final answer
    x = 52,237.85

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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.