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Finding the Fourth Proportional to 133,880.56, 184,753.62 and 77,290.72

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Solution

The fourth proportional to 133,880.56, 184,753.62 and 77,290.72 is: 106,660.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,880.56 : 184,753.62 = 77,290.72 : x
  2. Step 2: Convert to fraction form
    133,880.56/184,753.62 = 77,290.72/x
  3. Step 3: Cross multiply
    133,880.56x = 184,753.62 × 77,290.72
  4. Step 4: Simplify right side
    133,880.56x = 14,279,740,312.41
  5. Step 5: Solve for x
    x = 14,279,740,312.41/133,880.56
  6. Step 6: Final answer
    x = 106,660.30

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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.