Home / 133,621.45-184,400.56-76,259.63

Finding the Fourth Proportional to 133,621.45, 184,400.56 and 76,259.63

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Solution

The fourth proportional to 133,621.45, 184,400.56 and 76,259.63 is: 105,239.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,621.45 : 184,400.56 = 76,259.63 : x
  2. Step 2: Convert to fraction form
    133,621.45/184,400.56 = 76,259.63/x
  3. Step 3: Cross multiply
    133,621.45x = 184,400.56 × 76,259.63
  4. Step 4: Simplify right side
    133,621.45x = 14,062,318,103.71
  5. Step 5: Solve for x
    x = 14,062,318,103.71/133,621.45
  6. Step 6: Final answer
    x = 105,239.98

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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.