Home / 133,965.81-184,788.72-79,479.39

Finding the Fourth Proportional to 133,965.81, 184,788.72 and 79,479.39

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Solution

The fourth proportional to 133,965.81, 184,788.72 and 79,479.39 is: 109,631.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,965.81 : 184,788.72 = 79,479.39 : x
  2. Step 2: Convert to fraction form
    133,965.81/184,788.72 = 79,479.39/x
  3. Step 3: Cross multiply
    133,965.81x = 184,788.72 × 79,479.39
  4. Step 4: Simplify right side
    133,965.81x = 14,686,894,744.48
  5. Step 5: Solve for x
    x = 14,686,894,744.48/133,965.81
  6. Step 6: Final answer
    x = 109,631.66

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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.