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Finding the Fourth Proportional to 133,484.16, 184,230.72 and 76,928.40

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Solution

The fourth proportional to 133,484.16, 184,230.72 and 76,928.40 is: 106,174.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,484.16 : 184,230.72 = 76,928.40 : x
  2. Step 2: Convert to fraction form
    133,484.16/184,230.72 = 76,928.40/x
  3. Step 3: Cross multiply
    133,484.16x = 184,230.72 × 76,928.40
  4. Step 4: Simplify right side
    133,484.16x = 14,172,574,520.45
  5. Step 5: Solve for x
    x = 14,172,574,520.45/133,484.16
  6. Step 6: Final answer
    x = 106,174.20

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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.