Home / 133,972.32-184,885.68-76,621.20

Finding the Fourth Proportional to 133,972.32, 184,885.68 and 76,621.20

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Solution

The fourth proportional to 133,972.32, 184,885.68 and 76,621.20 is: 105,739.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,972.32 : 184,885.68 = 76,621.20 : x
  2. Step 2: Convert to fraction form
    133,972.32/184,885.68 = 76,621.20/x
  3. Step 3: Cross multiply
    133,972.32x = 184,885.68 × 76,621.20
  4. Step 4: Simplify right side
    133,972.32x = 14,166,162,664.42
  5. Step 5: Solve for x
    x = 14,166,162,664.42/133,972.32
  6. Step 6: Final answer
    x = 105,739.47

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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.