Home / 189,741.10-284,429.40-109,696.90

Finding the Fourth Proportional to 189,741.10, 284,429.40 and 109,696.90

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Solution

The fourth proportional to 189,741.10, 284,429.40 and 109,696.90 is: 164,439.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,741.10 : 284,429.40 = 109,696.90 : x
  2. Step 2: Convert to fraction form
    189,741.10/284,429.40 = 109,696.90/x
  3. Step 3: Cross multiply
    189,741.10x = 284,429.40 × 109,696.90
  4. Step 4: Simplify right side
    189,741.10x = 31,201,023,448.86
  5. Step 5: Solve for x
    x = 31,201,023,448.86/189,741.10
  6. Step 6: Final answer
    x = 164,439.98

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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.