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Finding the Fourth Proportional to 133,679.69, 184,465.70 and 77,080.13

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Solution

The fourth proportional to 133,679.69, 184,465.70 and 77,080.13 is: 106,363.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,679.69 : 184,465.70 = 77,080.13 : x
  2. Step 2: Convert to fraction form
    133,679.69/184,465.70 = 77,080.13/x
  3. Step 3: Cross multiply
    133,679.69x = 184,465.70 × 77,080.13
  4. Step 4: Simplify right side
    133,679.69x = 14,218,640,136.54
  5. Step 5: Solve for x
    x = 14,218,640,136.54/133,679.69
  6. Step 6: Final answer
    x = 106,363.50

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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.