Home / 111,535.65-166,817.48-99,774.45

Finding the Fourth Proportional to 111,535.65, 166,817.48 and 99,774.45

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Solution

The fourth proportional to 111,535.65, 166,817.48 and 99,774.45 is: 149,226.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,535.65 : 166,817.48 = 99,774.45 : x
  2. Step 2: Convert to fraction form
    111,535.65/166,817.48 = 99,774.45/x
  3. Step 3: Cross multiply
    111,535.65x = 166,817.48 × 99,774.45
  4. Step 4: Simplify right side
    111,535.65x = 16,644,121,818.51
  5. Step 5: Solve for x
    x = 16,644,121,818.51/111,535.65
  6. Step 6: Final answer
    x = 149,226.92

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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.