Home / 133,901.12-184,776.60-77,309.12

Finding the Fourth Proportional to 133,901.12, 184,776.60 and 77,309.12

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Solution

The fourth proportional to 133,901.12, 184,776.60 and 77,309.12 is: 106,682.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,901.12 : 184,776.60 = 77,309.12 : x
  2. Step 2: Convert to fraction form
    133,901.12/184,776.60 = 77,309.12/x
  3. Step 3: Cross multiply
    133,901.12x = 184,776.60 × 77,309.12
  4. Step 4: Simplify right side
    133,901.12x = 14,284,916,342.59
  5. Step 5: Solve for x
    x = 14,284,916,342.59/133,901.12
  6. Step 6: Final answer
    x = 106,682.58

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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.