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Finding the Fourth Proportional to 133,482.52, 184,169.46 and 78,291.55

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Solution

The fourth proportional to 133,482.52, 184,169.46 and 78,291.55 is: 108,020.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,482.52 : 184,169.46 = 78,291.55 : x
  2. Step 2: Convert to fraction form
    133,482.52/184,169.46 = 78,291.55/x
  3. Step 3: Cross multiply
    133,482.52x = 184,169.46 × 78,291.55
  4. Step 4: Simplify right side
    133,482.52x = 14,418,912,486.06
  5. Step 5: Solve for x
    x = 14,418,912,486.06/133,482.52
  6. Step 6: Final answer
    x = 108,020.98

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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.