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Finding the Fourth Proportional to 133,642.70, 184,426.90 and 79,927.72

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Solution

The fourth proportional to 133,642.70, 184,426.90 and 79,927.72 is: 110,300.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,642.70 : 184,426.90 = 79,927.72 : x
  2. Step 2: Convert to fraction form
    133,642.70/184,426.90 = 79,927.72/x
  3. Step 3: Cross multiply
    133,642.70x = 184,426.90 × 79,927.72
  4. Step 4: Simplify right side
    133,642.70x = 14,740,821,262.51
  5. Step 5: Solve for x
    x = 14,740,821,262.51/133,642.70
  6. Step 6: Final answer
    x = 110,300.24

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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.