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Finding the Fourth Proportional to 111,143.34, 166,708.53 and 66,470.22

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Solution

The fourth proportional to 111,143.34, 166,708.53 and 66,470.22 is: 99,701.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,143.34 : 166,708.53 = 66,470.22 : x
  2. Step 2: Convert to fraction form
    111,143.34/166,708.53 = 66,470.22/x
  3. Step 3: Cross multiply
    111,143.34x = 166,708.53 × 66,470.22
  4. Step 4: Simplify right side
    111,143.34x = 11,081,152,664.98
  5. Step 5: Solve for x
    x = 11,081,152,664.98/111,143.34
  6. Step 6: Final answer
    x = 99,701.45

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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.