Home / 136,961.65-189,006.66-76,532.35

Finding the Fourth Proportional to 136,961.65, 189,006.66 and 76,532.35

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Solution

The fourth proportional to 136,961.65, 189,006.66 and 76,532.35 is: 105,614.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,961.65 : 189,006.66 = 76,532.35 : x
  2. Step 2: Convert to fraction form
    136,961.65/189,006.66 = 76,532.35/x
  3. Step 3: Cross multiply
    136,961.65x = 189,006.66 × 76,532.35
  4. Step 4: Simplify right side
    136,961.65x = 14,465,122,990.49
  5. Step 5: Solve for x
    x = 14,465,122,990.49/136,961.65
  6. Step 6: Final answer
    x = 105,614.41

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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.