Home / 136,013.78-187,703.57-75,586.97

Finding the Fourth Proportional to 136,013.78, 187,703.57 and 75,586.97

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Solution

The fourth proportional to 136,013.78, 187,703.57 and 75,586.97 is: 104,312.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,013.78 : 187,703.57 = 75,586.97 : x
  2. Step 2: Convert to fraction form
    136,013.78/187,703.57 = 75,586.97/x
  3. Step 3: Cross multiply
    136,013.78x = 187,703.57 × 75,586.97
  4. Step 4: Simplify right side
    136,013.78x = 14,187,944,560.12
  5. Step 5: Solve for x
    x = 14,187,944,560.12/136,013.78
  6. Step 6: Final answer
    x = 104,312.55

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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.