Home / 133,436.76-184,293.90-90,921.48

Finding the Fourth Proportional to 133,436.76, 184,293.90 and 90,921.48

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Solution

The fourth proportional to 133,436.76, 184,293.90 and 90,921.48 is: 125,574.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,436.76 : 184,293.90 = 90,921.48 : x
  2. Step 2: Convert to fraction form
    133,436.76/184,293.90 = 90,921.48/x
  3. Step 3: Cross multiply
    133,436.76x = 184,293.90 × 90,921.48
  4. Step 4: Simplify right side
    133,436.76x = 16,756,274,142.97
  5. Step 5: Solve for x
    x = 16,756,274,142.97/133,436.76
  6. Step 6: Final answer
    x = 125,574.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.