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Finding the Fourth Proportional to 144,900.57, 217,069.44 and 81,527.49

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Solution

The fourth proportional to 144,900.57, 217,069.44 and 81,527.49 is: 122,132.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,900.57 : 217,069.44 = 81,527.49 : x
  2. Step 2: Convert to fraction form
    144,900.57/217,069.44 = 81,527.49/x
  3. Step 3: Cross multiply
    144,900.57x = 217,069.44 × 81,527.49
  4. Step 4: Simplify right side
    144,900.57x = 17,697,126,598.91
  5. Step 5: Solve for x
    x = 17,697,126,598.91/144,900.57
  6. Step 6: Final answer
    x = 122,132.90

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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.