Home / 136,037.07-187,722.09-75,603.78

Finding the Fourth Proportional to 136,037.07, 187,722.09 and 75,603.78

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Solution

The fourth proportional to 136,037.07, 187,722.09 and 75,603.78 is: 104,328.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,037.07 : 187,722.09 = 75,603.78 : x
  2. Step 2: Convert to fraction form
    136,037.07/187,722.09 = 75,603.78/x
  3. Step 3: Cross multiply
    136,037.07x = 187,722.09 × 75,603.78
  4. Step 4: Simplify right side
    136,037.07x = 14,192,499,593.50
  5. Step 5: Solve for x
    x = 14,192,499,593.50/136,037.07
  6. Step 6: Final answer
    x = 104,328.18

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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.