Home / 133,783.47-184,606.16-77,213.55

Finding the Fourth Proportional to 133,783.47, 184,606.16 and 77,213.55

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Solution

The fourth proportional to 133,783.47, 184,606.16 and 77,213.55 is: 106,546.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,783.47 : 184,606.16 = 77,213.55 : x
  2. Step 2: Convert to fraction form
    133,783.47/184,606.16 = 77,213.55/x
  3. Step 3: Cross multiply
    133,783.47x = 184,606.16 × 77,213.55
  4. Step 4: Simplify right side
    133,783.47x = 14,254,096,579.40
  5. Step 5: Solve for x
    x = 14,254,096,579.40/133,783.47
  6. Step 6: Final answer
    x = 106,546.02

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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.