Home / 110,869.21-166,345.13-66,527.78

Finding the Fourth Proportional to 110,869.21, 166,345.13 and 66,527.78

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Solution

The fourth proportional to 110,869.21, 166,345.13 and 66,527.78 is: 99,816.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,869.21 : 166,345.13 = 66,527.78 : x
  2. Step 2: Convert to fraction form
    110,869.21/166,345.13 = 66,527.78/x
  3. Step 3: Cross multiply
    110,869.21x = 166,345.13 × 66,527.78
  4. Step 4: Simplify right side
    110,869.21x = 11,066,572,212.71
  5. Step 5: Solve for x
    x = 11,066,572,212.71/110,869.21
  6. Step 6: Final answer
    x = 99,816.47

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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.