Home / 135,643.55-187,190.33-75,216.74

Finding the Fourth Proportional to 135,643.55, 187,190.33 and 75,216.74

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Solution

The fourth proportional to 135,643.55, 187,190.33 and 75,216.74 is: 103,800.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,643.55 : 187,190.33 = 75,216.74 : x
  2. Step 2: Convert to fraction form
    135,643.55/187,190.33 = 75,216.74/x
  3. Step 3: Cross multiply
    135,643.55x = 187,190.33 × 75,216.74
  4. Step 4: Simplify right side
    135,643.55x = 14,079,845,070.09
  5. Step 5: Solve for x
    x = 14,079,845,070.09/135,643.55
  6. Step 6: Final answer
    x = 103,800.33

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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.