Home / 133,118.72-199,624.32-66,533.12

Finding the Fourth Proportional to 133,118.72, 199,624.32 and 66,533.12

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Solution

The fourth proportional to 133,118.72, 199,624.32 and 66,533.12 is: 99,772.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,118.72 : 199,624.32 = 66,533.12 : x
  2. Step 2: Convert to fraction form
    133,118.72/199,624.32 = 66,533.12/x
  3. Step 3: Cross multiply
    133,118.72x = 199,624.32 × 66,533.12
  4. Step 4: Simplify right side
    133,118.72x = 13,281,628,837.48
  5. Step 5: Solve for x
    x = 13,281,628,837.48/133,118.72
  6. Step 6: Final answer
    x = 99,772.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.