Home / 111,904.57-167,840.30-40,810.53

Finding the Fourth Proportional to 111,904.57, 167,840.30 and 40,810.53

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Solution

The fourth proportional to 111,904.57, 167,840.30 and 40,810.53 is: 61,209.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,904.57 : 167,840.30 = 40,810.53 : x
  2. Step 2: Convert to fraction form
    111,904.57/167,840.30 = 40,810.53/x
  3. Step 3: Cross multiply
    111,904.57x = 167,840.30 × 40,810.53
  4. Step 4: Simplify right side
    111,904.57x = 6,849,652,329.79
  5. Step 5: Solve for x
    x = 6,849,652,329.79/111,904.57
  6. Step 6: Final answer
    x = 61,209.76

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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.