Home / 135,856.53-187,484.22-75,431.07

Finding the Fourth Proportional to 135,856.53, 187,484.22 and 75,431.07

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Solution

The fourth proportional to 135,856.53, 187,484.22 and 75,431.07 is: 104,096.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,856.53 : 187,484.22 = 75,431.07 : x
  2. Step 2: Convert to fraction form
    135,856.53/187,484.22 = 75,431.07/x
  3. Step 3: Cross multiply
    135,856.53x = 187,484.22 × 75,431.07
  4. Step 4: Simplify right side
    135,856.53x = 14,142,135,322.72
  5. Step 5: Solve for x
    x = 14,142,135,322.72/135,856.53
  6. Step 6: Final answer
    x = 104,096.10

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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.