Home / 189,602.12-261,704.93-112,149.51

Finding the Fourth Proportional to 189,602.12, 261,704.93 and 112,149.51

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Solution

The fourth proportional to 189,602.12, 261,704.93 and 112,149.51 is: 154,798.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,602.12 : 261,704.93 = 112,149.51 : x
  2. Step 2: Convert to fraction form
    189,602.12/261,704.93 = 112,149.51/x
  3. Step 3: Cross multiply
    189,602.12x = 261,704.93 × 112,149.51
  4. Step 4: Simplify right side
    189,602.12x = 29,350,079,594.03
  5. Step 5: Solve for x
    x = 29,350,079,594.03/189,602.12
  6. Step 6: Final answer
    x = 154,798.27

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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.