Home / 135,627.30-187,236.18-105,344.82

Finding the Fourth Proportional to 135,627.30, 187,236.18 and 105,344.82

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Solution

The fourth proportional to 135,627.30, 187,236.18 and 105,344.82 is: 145,430.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,627.30 : 187,236.18 = 105,344.82 : x
  2. Step 2: Convert to fraction form
    135,627.30/187,236.18 = 105,344.82/x
  3. Step 3: Cross multiply
    135,627.30x = 187,236.18 × 105,344.82
  4. Step 4: Simplify right side
    135,627.30x = 19,724,361,679.59
  5. Step 5: Solve for x
    x = 19,724,361,679.59/135,627.30
  6. Step 6: Final answer
    x = 145,430.62

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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.