Home / 189,212.08-261,158.16-113,746

Finding the Fourth Proportional to 189,212.08, 261,158.16 and 113,746

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Solution

The fourth proportional to 189,212.08, 261,158.16 and 113,746 is: 156,996.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,212.08 : 261,158.16 = 113,746 : x
  2. Step 2: Convert to fraction form
    189,212.08/261,158.16 = 113,746/x
  3. Step 3: Cross multiply
    189,212.08x = 261,158.16 × 113,746
  4. Step 4: Simplify right side
    189,212.08x = 29,705,696,067.36
  5. Step 5: Solve for x
    x = 29,705,696,067.36/189,212.08
  6. Step 6: Final answer
    x = 156,996.83

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1.5x scale

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.