Home / 189,847.24-261,990.02-103,808.04

Finding the Fourth Proportional to 189,847.24, 261,990.02 and 103,808.04

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Solution

The fourth proportional to 189,847.24, 261,990.02 and 103,808.04 is: 143,255.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,847.24 : 261,990.02 = 103,808.04 : x
  2. Step 2: Convert to fraction form
    189,847.24/261,990.02 = 103,808.04/x
  3. Step 3: Cross multiply
    189,847.24x = 261,990.02 × 103,808.04
  4. Step 4: Simplify right side
    189,847.24x = 27,196,670,475.76
  5. Step 5: Solve for x
    x = 27,196,670,475.76/189,847.24
  6. Step 6: Final answer
    x = 143,255.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.