Home / 136,134.84-187,838.52-79,535.28

Finding the Fourth Proportional to 136,134.84, 187,838.52 and 79,535.28

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Solution

The fourth proportional to 136,134.84, 187,838.52 and 79,535.28 is: 109,742.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,134.84 : 187,838.52 = 79,535.28 : x
  2. Step 2: Convert to fraction form
    136,134.84/187,838.52 = 79,535.28/x
  3. Step 3: Cross multiply
    136,134.84x = 187,838.52 × 79,535.28
  4. Step 4: Simplify right side
    136,134.84x = 14,939,789,282.99
  5. Step 5: Solve for x
    x = 14,939,789,282.99/136,134.84
  6. Step 6: Final answer
    x = 109,742.59

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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.