Home / 128,456.46-192,435.32-94,661.13

Finding the Fourth Proportional to 128,456.46, 192,435.32 and 94,661.13

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Solution

The fourth proportional to 128,456.46, 192,435.32 and 94,661.13 is: 141,807.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,456.46 : 192,435.32 = 94,661.13 : x
  2. Step 2: Convert to fraction form
    128,456.46/192,435.32 = 94,661.13/x
  3. Step 3: Cross multiply
    128,456.46x = 192,435.32 × 94,661.13
  4. Step 4: Simplify right side
    128,456.46x = 18,216,144,117.59
  5. Step 5: Solve for x
    x = 18,216,144,117.59/128,456.46
  6. Step 6: Final answer
    x = 141,807.93

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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.