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Finding the Fourth Proportional to 133,818.48, 184,616.82 and 77,218.92

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Solution

The fourth proportional to 133,818.48, 184,616.82 and 77,218.92 is: 106,531.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,818.48 : 184,616.82 = 77,218.92 : x
  2. Step 2: Convert to fraction form
    133,818.48/184,616.82 = 77,218.92/x
  3. Step 3: Cross multiply
    133,818.48x = 184,616.82 × 77,218.92
  4. Step 4: Simplify right side
    133,818.48x = 14,255,911,454.23
  5. Step 5: Solve for x
    x = 14,255,911,454.23/133,818.48
  6. Step 6: Final answer
    x = 106,531.71

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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.