Home / 111,246.60-166,869.90-66,923.40

Finding the Fourth Proportional to 111,246.60, 166,869.90 and 66,923.40

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Solution

The fourth proportional to 111,246.60, 166,869.90 and 66,923.40 is: 100,385.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,246.60 : 166,869.90 = 66,923.40 : x
  2. Step 2: Convert to fraction form
    111,246.60/166,869.90 = 66,923.40/x
  3. Step 3: Cross multiply
    111,246.60x = 166,869.90 × 66,923.40
  4. Step 4: Simplify right side
    111,246.60x = 11,167,501,065.66
  5. Step 5: Solve for x
    x = 11,167,501,065.66/111,246.60
  6. Step 6: Final answer
    x = 100,385.10

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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.