Home / 189,289.40-261,133.98-108,696.92

Finding the Fourth Proportional to 189,289.40, 261,133.98 and 108,696.92

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Solution

The fourth proportional to 189,289.40, 261,133.98 and 108,696.92 is: 149,952.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,289.40 : 261,133.98 = 108,696.92 : x
  2. Step 2: Convert to fraction form
    189,289.40/261,133.98 = 108,696.92/x
  3. Step 3: Cross multiply
    189,289.40x = 261,133.98 × 108,696.92
  4. Step 4: Simplify right side
    189,289.40x = 28,384,459,333.34
  5. Step 5: Solve for x
    x = 28,384,459,333.34/189,289.40
  6. Step 6: Final answer
    x = 149,952.71

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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.