Home / 128,594.66-193,188.45-123,280.34

Finding the Fourth Proportional to 128,594.66, 193,188.45 and 123,280.34

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Solution

The fourth proportional to 128,594.66, 193,188.45 and 123,280.34 is: 185,204.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,594.66 : 193,188.45 = 123,280.34 : x
  2. Step 2: Convert to fraction form
    128,594.66/193,188.45 = 123,280.34/x
  3. Step 3: Cross multiply
    128,594.66x = 193,188.45 × 123,280.34
  4. Step 4: Simplify right side
    128,594.66x = 23,816,337,800.07
  5. Step 5: Solve for x
    x = 23,816,337,800.07/128,594.66
  6. Step 6: Final answer
    x = 185,204.72

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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.