Home / 135,613.64-187,032.93-87,223.53

Finding the Fourth Proportional to 135,613.64, 187,032.93 and 87,223.53

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Solution

The fourth proportional to 135,613.64, 187,032.93 and 87,223.53 is: 120,295.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,613.64 : 187,032.93 = 87,223.53 : x
  2. Step 2: Convert to fraction form
    135,613.64/187,032.93 = 87,223.53/x
  3. Step 3: Cross multiply
    135,613.64x = 187,032.93 × 87,223.53
  4. Step 4: Simplify right side
    135,613.64x = 16,313,672,380.84
  5. Step 5: Solve for x
    x = 16,313,672,380.84/135,613.64
  6. Step 6: Final answer
    x = 120,295.22

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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.