Home / 136,078.41-187,511.25-105,264.30

Finding the Fourth Proportional to 136,078.41, 187,511.25 and 105,264.30

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Solution

The fourth proportional to 136,078.41, 187,511.25 and 105,264.30 is: 145,050.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,078.41 : 187,511.25 = 105,264.30 : x
  2. Step 2: Convert to fraction form
    136,078.41/187,511.25 = 105,264.30/x
  3. Step 3: Cross multiply
    136,078.41x = 187,511.25 × 105,264.30
  4. Step 4: Simplify right side
    136,078.41x = 19,738,240,473.38
  5. Step 5: Solve for x
    x = 19,738,240,473.38/136,078.41
  6. Step 6: Final answer
    x = 145,050.49

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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.