Home / 135,772.46-187,353.58-80,572.28

Finding the Fourth Proportional to 135,772.46, 187,353.58 and 80,572.28

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Solution

The fourth proportional to 135,772.46, 187,353.58 and 80,572.28 is: 111,182.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,772.46 : 187,353.58 = 80,572.28 : x
  2. Step 2: Convert to fraction form
    135,772.46/187,353.58 = 80,572.28/x
  3. Step 3: Cross multiply
    135,772.46x = 187,353.58 × 80,572.28
  4. Step 4: Simplify right side
    135,772.46x = 15,095,506,087.44
  5. Step 5: Solve for x
    x = 15,095,506,087.44/135,772.46
  6. Step 6: Final answer
    x = 111,182.38

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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.