Home / 128,292.60-192,669.30-124,145.40

Finding the Fourth Proportional to 128,292.60, 192,669.30 and 124,145.40

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Solution

The fourth proportional to 128,292.60, 192,669.30 and 124,145.40 is: 186,441.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,292.60 : 192,669.30 = 124,145.40 : x
  2. Step 2: Convert to fraction form
    128,292.60/192,669.30 = 124,145.40/x
  3. Step 3: Cross multiply
    128,292.60x = 192,669.30 × 124,145.40
  4. Step 4: Simplify right side
    128,292.60x = 23,919,007,316.22
  5. Step 5: Solve for x
    x = 23,919,007,316.22/128,292.60
  6. Step 6: Final answer
    x = 186,441.05

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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.