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Finding the Fourth Proportional to 133,144.40, 199,774.68 and 70,741.84

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Solution

The fourth proportional to 133,144.40, 199,774.68 and 70,741.84 is: 106,143.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,144.40 : 199,774.68 = 70,741.84 : x
  2. Step 2: Convert to fraction form
    133,144.40/199,774.68 = 70,741.84/x
  3. Step 3: Cross multiply
    133,144.40x = 199,774.68 × 70,741.84
  4. Step 4: Simplify right side
    133,144.40x = 14,132,428,448.61
  5. Step 5: Solve for x
    x = 14,132,428,448.61/133,144.40
  6. Step 6: Final answer
    x = 106,143.62

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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.