Home / 135,636.76-187,180.98-75,209.95

Finding the Fourth Proportional to 135,636.76, 187,180.98 and 75,209.95

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Solution

The fourth proportional to 135,636.76, 187,180.98 and 75,209.95 is: 103,790.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,636.76 : 187,180.98 = 75,209.95 : x
  2. Step 2: Convert to fraction form
    135,636.76/187,180.98 = 75,209.95/x
  3. Step 3: Cross multiply
    135,636.76x = 187,180.98 × 75,209.95
  4. Step 4: Simplify right side
    135,636.76x = 14,077,872,098.69
  5. Step 5: Solve for x
    x = 14,077,872,098.69/135,636.76
  6. Step 6: Final answer
    x = 103,790.98

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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.