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Finding the Fourth Proportional to 133,603.28, 184,405.80 and 77,048.72

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Solution

The fourth proportional to 133,603.28, 184,405.80 and 77,048.72 is: 106,346.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,603.28 : 184,405.80 = 77,048.72 : x
  2. Step 2: Convert to fraction form
    133,603.28/184,405.80 = 77,048.72/x
  3. Step 3: Cross multiply
    133,603.28x = 184,405.80 × 77,048.72
  4. Step 4: Simplify right side
    133,603.28x = 14,208,230,850.58
  5. Step 5: Solve for x
    x = 14,208,230,850.58/133,603.28
  6. Step 6: Final answer
    x = 106,346.42

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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.